diff --git a/effects/boxswitch/boxswitch_config.ui b/effects/boxswitch/boxswitch_config.ui
index 86b519d182..6cce699964 100644
--- a/effects/boxswitch/boxswitch_config.ui
+++ b/effects/boxswitch/boxswitch_config.ui
@@ -51,7 +51,7 @@
     </widget>
    </item>
    <item row="1" column="1" >
-    <widget class="QSpinBox" name="opacitySpin" >
+    <widget class="KIntSpinBox" name="opacitySpin" >
      <property name="minimum" >
       <number>1</number>
      </property>
@@ -65,6 +65,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>opacitySlider</tabstop>
   <tabstop>opacitySpin</tabstop>
diff --git a/effects/coverswitch/coverswitch_config.cpp b/effects/coverswitch/coverswitch_config.cpp
index d113349099..88808ae143 100644
--- a/effects/coverswitch/coverswitch_config.cpp
+++ b/effects/coverswitch/coverswitch_config.cpp
@@ -67,6 +67,7 @@ void CoverSwitchEffectConfig::load()
     KConfigGroup conf = EffectsHandler::effectConfig( "CoverSwitch" );
 
     m_ui->spinDuration->setValue( conf.readEntry( "Duration", 0 ) );
+    m_ui->spinDuration->setSuffix( ki18np( " milisecond", " miliseconds" ) );
     m_ui->checkAnimateSwitch->setChecked( conf.readEntry( "AnimateSwitch", true ));
     m_ui->checkAnimateStart->setChecked( conf.readEntry( "AnimateStart", true ));
     m_ui->checkAnimateStop->setChecked( conf.readEntry( "AnimateStop", true ));
diff --git a/effects/coverswitch/coverswitch_config.ui b/effects/coverswitch/coverswitch_config.ui
index 83a296131c..9248ee6c88 100644
--- a/effects/coverswitch/coverswitch_config.ui
+++ b/effects/coverswitch/coverswitch_config.ui
@@ -99,7 +99,7 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="QSpinBox" name="spinThumbnailWindows"/>
+       <widget class="KIntSpinBox" name="spinThumbnailWindows"/>
       </item>
      </layout>
     </widget>
@@ -139,7 +139,7 @@
        </widget>
       </item>
       <item row="5" column="1">
-       <widget class="QSpinBox" name="spinDuration">
+       <widget class="KIntSpinBox" name="spinDuration">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
@@ -149,9 +149,6 @@
         <property name="specialValueText">
          <string comment="Duration of rotation">Default</string>
         </property>
-        <property name="suffix">
-         <string> msec</string>
-        </property>
         <property name="maximum">
          <number>5000</number>
         </property>
@@ -214,6 +211,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>checkAnimateSwitch</tabstop>
   <tabstop>checkAnimateStart</tabstop>
diff --git a/effects/cube/cube_config.cpp b/effects/cube/cube_config.cpp
index bf8cdbeda5..c187336062 100644
--- a/effects/cube/cube_config.cpp
+++ b/effects/cube/cube_config.cpp
@@ -123,6 +123,7 @@ void CubeEffectConfig::load()
     bool zOrdering = conf.readEntry( "ZOrdering", false );
 
     m_ui->rotationDurationSpin->setValue( duration );
+    m_ui->rotationDurationSpin->setSuffix( ki18np( " milisecond", " miliseconds" ) );
     m_ui->cubeOpacitySlider->setValue( opacity );
     m_ui->cubeOpacitySpin->setValue( opacity );
     m_ui->desktopOpacityOnlyBox->setChecked( desktopOpacityOnly );
diff --git a/effects/cube/cube_config.ui b/effects/cube/cube_config.ui
index a2747e586f..6e9d3003f7 100644
--- a/effects/cube/cube_config.ui
+++ b/effects/cube/cube_config.ui
@@ -128,7 +128,7 @@
            </widget>
           </item>
           <item row="3" column="1" >
-           <widget class="QSpinBox" name="rotationDurationSpin" >
+           <widget class="KIntSpinBox" name="rotationDurationSpin" >
             <property name="sizePolicy" >
              <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
               <horstretch>0</horstretch>
@@ -144,9 +144,6 @@
             <property name="specialValueText" >
              <string comment="Duration of rotation" >Default</string>
             </property>
-            <property name="suffix" >
-             <string> msec</string>
-            </property>
             <property name="maximum" >
              <number>5000</number>
             </property>
@@ -213,7 +210,7 @@
            </widget>
           </item>
           <item row="1" column="2" >
-           <widget class="QSpinBox" name="cubeOpacitySpin" >
+           <widget class="KIntSpinBox" name="cubeOpacitySpin" >
             <property name="minimumSize" >
              <size>
               <width>75</width>
@@ -496,6 +493,11 @@ otherwise it will remain active</string>
    <extends>QPushButton</extends>
    <header>kcolorbutton.h</header>
   </customwidget>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KUrlRequester</class>
    <extends>QFrame</extends>
diff --git a/effects/cube/cubeslide_config.ui b/effects/cube/cubeslide_config.ui
index 931b626b6f..d8284cf1e4 100644
--- a/effects/cube/cubeslide_config.ui
+++ b/effects/cube/cubeslide_config.ui
@@ -32,7 +32,7 @@
     </spacer>
    </item>
    <item row="0" column="1">
-    <widget class="QSpinBox" name="rotationDurationSpin">
+    <widget class="KIntSpinBox" name="rotationDurationSpin">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -88,6 +88,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>rotationDurationSpin</tabstop>
   <tabstop>dontSlidePanelsBox</tabstop>
diff --git a/effects/desktopgrid/desktopgrid_config.cpp b/effects/desktopgrid/desktopgrid_config.cpp
index f0cff3b2d5..a826ac0707 100644
--- a/effects/desktopgrid/desktopgrid_config.cpp
+++ b/effects/desktopgrid/desktopgrid_config.cpp
@@ -106,7 +106,9 @@ void DesktopGridEffectConfig::load()
     KConfigGroup conf = EffectsHandler::effectConfig( "DesktopGrid" );
 
     m_ui->zoomDurationSpin->setValue( conf.readEntry( "ZoomDuration", 0 ));
+    m_ui->zoomDurationSpin->setSuffix( ki18np( " milisecond", " miliseconds"));
     m_ui->borderWidthSpin->setValue( conf.readEntry( "BorderWidth", 10 ));
+    m_ui->borderWidthSpin->setSuffix( ki18np( " pixel", " pixels"));
 
     Qt::Alignment alignment = Qt::Alignment( conf.readEntry( "DesktopNameAlignment", 0 ));
     m_ui->desktopNameAlignmentCombo->setCurrentIndex( m_alignmentItems.indexOf( alignment ));
@@ -116,6 +118,7 @@ void DesktopGridEffectConfig::load()
     layoutSelectionChanged();
 
     m_ui->layoutRowsSpin->setValue( conf.readEntry( "CustomLayoutRows", 2 ));
+    m_ui->layoutRowsSpin->setSuffix( ki18np( " row", " rows"));
 
     emit changed(false);
     }
diff --git a/effects/desktopgrid/desktopgrid_config.ui b/effects/desktopgrid/desktopgrid_config.ui
index 10726221e2..375741fb41 100644
--- a/effects/desktopgrid/desktopgrid_config.ui
+++ b/effects/desktopgrid/desktopgrid_config.ui
@@ -30,7 +30,7 @@
        </widget>
       </item>
       <item row="0" column="1" >
-       <widget class="QSpinBox" name="zoomDurationSpin" >
+       <widget class="KIntSpinBox" name="zoomDurationSpin" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
@@ -40,9 +40,6 @@
         <property name="specialValueText" >
          <string comment="Duration of zoom">Default</string>
         </property>
-        <property name="suffix" >
-         <string> msec</string>
-        </property>
         <property name="maximum" >
          <number>5000</number>
         </property>
@@ -65,16 +62,13 @@
        </widget>
       </item>
       <item row="1" column="1" >
-       <widget class="QSpinBox" name="borderWidthSpin" >
+       <widget class="KIntSpinBox" name="borderWidthSpin" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> pixels</string>
-        </property>
         <property name="maximum" >
          <number>100</number>
         </property>
@@ -158,16 +152,13 @@
        </widget>
       </item>
       <item row="4" column="1" >
-       <widget class="QSpinBox" name="layoutRowsSpin" >
+       <widget class="KIntSpinBox" name="layoutRowsSpin" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> rows</string>
-        </property>
         <property name="minimum" >
          <number>1</number>
         </property>
@@ -217,6 +208,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/diminactive/diminactive_config.ui b/effects/diminactive/diminactive_config.ui
index 28f3393dc8..a233da80d5 100644
--- a/effects/diminactive/diminactive_config.ui
+++ b/effects/diminactive/diminactive_config.ui
@@ -64,7 +64,7 @@
     </widget>
    </item>
    <item row="0" column="2" >
-    <widget class="QSpinBox" name="spinStrength" >
+    <widget class="KIntSpinBox" name="spinStrength" >
      <property name="minimum" >
       <number>1</number>
      </property>
@@ -91,6 +91,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>sliderStrength</tabstop>
   <tabstop>spinStrength</tabstop>
diff --git a/effects/flipswitch/flipswitch_config.cpp b/effects/flipswitch/flipswitch_config.cpp
index d68d8cd8e5..eda60ea0c2 100644
--- a/effects/flipswitch/flipswitch_config.cpp
+++ b/effects/flipswitch/flipswitch_config.cpp
@@ -62,6 +62,7 @@ void FlipSwitchEffectConfig::load()
     int flipDuration = conf.readEntry( "FlipDuration", 0 );
     bool animateFlip = conf.readEntry( "AnimateFlip", true );
     m_ui->spinFlipDuration->setValue( flipDuration );
+    m_ui->spinFlipDuration->setSuffix( ki18np ( " milisecond", " miliseconds" ) );
     if( animateFlip )
         {
         m_ui->checkAnimateFlip->setCheckState( Qt::Checked );
diff --git a/effects/flipswitch/flipswitch_config.ui b/effects/flipswitch/flipswitch_config.ui
index 833061e431..9c833fcf3e 100644
--- a/effects/flipswitch/flipswitch_config.ui
+++ b/effects/flipswitch/flipswitch_config.ui
@@ -37,7 +37,7 @@
        </widget>
       </item>
       <item row="1" column="1" >
-       <widget class="QSpinBox" name="spinFlipDuration" >
+       <widget class="KIntSpinBox" name="spinFlipDuration" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
@@ -47,9 +47,6 @@
         <property name="specialValueText" >
          <string comment="Duration of flip animation">Default</string>
         </property>
-        <property name="suffix" >
-         <string> msec</string>
-        </property>
         <property name="maximum" >
          <number>5000</number>
         </property>
@@ -63,6 +60,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>checkAnimateFlip</tabstop>
   <tabstop>spinFlipDuration</tabstop>
diff --git a/effects/lookingglass/lookingglass_config.ui b/effects/lookingglass/lookingglass_config.ui
index ae16b59f3b..cb20ef39c5 100644
--- a/effects/lookingglass/lookingglass_config.ui
+++ b/effects/lookingglass/lookingglass_config.ui
@@ -27,7 +27,7 @@
     </widget>
    </item>
    <item row="0" column="1" >
-    <widget class="QSpinBox" name="radiusSpin" >
+    <widget class="KIntSpinBox" name="radiusSpin" >
      <property name="sizePolicy" >
       <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
        <horstretch>0</horstretch>
@@ -42,6 +42,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/magiclamp/magiclamp_config.cpp b/effects/magiclamp/magiclamp_config.cpp
index 7765e01881..3f9fd1e1f9 100644
--- a/effects/magiclamp/magiclamp_config.cpp
+++ b/effects/magiclamp/magiclamp_config.cpp
@@ -55,6 +55,7 @@ void MagicLampEffectConfig::load()
 
     int duration       = conf.readEntry( "AnimationDuration", 0 );
     m_ui->animationDurationSpin->setValue( duration );
+    m_ui->animationDurationSpin->setSuffix(ki18np(" milisecond", " miliseconds"));
     emit changed(false);
     }
 
diff --git a/effects/magiclamp/magiclamp_config.ui b/effects/magiclamp/magiclamp_config.ui
index 691c82ccc2..c7ae156270 100644
--- a/effects/magiclamp/magiclamp_config.ui
+++ b/effects/magiclamp/magiclamp_config.ui
@@ -24,7 +24,7 @@
     </widget>
    </item>
    <item row="0" column="1" >
-    <widget class="QSpinBox" name="animationDurationSpin" >
+    <widget class="KIntSpinBox" name="animationDurationSpin" >
      <property name="sizePolicy" >
       <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
        <horstretch>0</horstretch>
@@ -34,9 +34,6 @@
      <property name="specialValueText" >
       <string comment="Duration of rotation" >Default</string>
      </property>
-     <property name="suffix" >
-      <string> msec</string>
-     </property>
      <property name="maximum" >
       <number>5000</number>
      </property>
@@ -47,6 +44,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>
diff --git a/effects/magnifier/magnifier_config.ui b/effects/magnifier/magnifier_config.ui
index 0347344567..585b85a923 100644
--- a/effects/magnifier/magnifier_config.ui
+++ b/effects/magnifier/magnifier_config.ui
@@ -30,7 +30,7 @@
        </widget>
       </item>
       <item row="0" column="1" >
-       <widget class="QSpinBox" name="spinWidth" >
+       <widget class="KIntSpinBox" name="spinWidth" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
@@ -62,7 +62,7 @@
        </widget>
       </item>
       <item row="1" column="1" >
-       <widget class="QSpinBox" name="spinHeight" >
+       <widget class="KIntSpinBox" name="spinHeight" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
@@ -89,6 +89,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/mousemark/mousemark_config.cpp b/effects/mousemark/mousemark_config.cpp
index 4909fb468c..077d9b900f 100644
--- a/effects/mousemark/mousemark_config.cpp
+++ b/effects/mousemark/mousemark_config.cpp
@@ -88,6 +88,7 @@ void MouseMarkEffectConfig::load()
     int width = conf.readEntry("LineWidth", 3);
     QColor color = conf.readEntry("Color", QColor(Qt::red));
     m_ui->spinWidth->setValue(width);
+    m_ui->spinWidth->setSuffix(ki18np(" pixel", " pixels"));
     m_ui->comboColors->setColor(color);
 
     emit changed(false);
diff --git a/effects/mousemark/mousemark_config.ui b/effects/mousemark/mousemark_config.ui
index 3897ffe9db..f99f183ad3 100644
--- a/effects/mousemark/mousemark_config.ui
+++ b/effects/mousemark/mousemark_config.ui
@@ -30,16 +30,13 @@
        </widget>
       </item>
       <item row="0" column="1" >
-       <widget class="QSpinBox" name="spinWidth" >
+       <widget class="KIntSpinBox" name="spinWidth" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px</string>
-        </property>
         <property name="minimum" >
          <number>1</number>
         </property>
@@ -281,6 +278,11 @@
    <extends>QComboBox</extends>
    <header>kcolorcombo.h</header>
   </customwidget>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/presentwindows/presentwindows_config.cpp b/effects/presentwindows/presentwindows_config.cpp
index 35783cf3ad..256f3e2dd6 100644
--- a/effects/presentwindows/presentwindows_config.cpp
+++ b/effects/presentwindows/presentwindows_config.cpp
@@ -107,6 +107,7 @@ void PresentWindowsEffectConfig::load()
     m_ui->layoutCombo->setCurrentIndex( layoutMode );
 
     m_ui->rearrangeDurationSpin->setValue( conf.readEntry( "RearrangeDuration", 0 ));
+    m_ui->rearrangeDurationSpin->setSuffix(ki18np(" milisecond", " miliseconds"));
 
     bool displayTitle = conf.readEntry( "DrawWindowCaptions", true );
     m_ui->displayTitleBox->setChecked( displayTitle );
diff --git a/effects/presentwindows/presentwindows_config.ui b/effects/presentwindows/presentwindows_config.ui
index 922f5617cc..66038330db 100644
--- a/effects/presentwindows/presentwindows_config.ui
+++ b/effects/presentwindows/presentwindows_config.ui
@@ -30,9 +30,9 @@
         </property>
        </widget>
       </item>
-      <item row="0" column="1">
-       <widget class="QSpinBox" name="rearrangeDurationSpin">
-        <property name="sizePolicy">
+      <item row="0" column="1" >
+       <widget class="KIntSpinBox" name="rearrangeDurationSpin" >
+        <property name="sizePolicy" >
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
@@ -41,9 +41,6 @@
         <property name="specialValueText">
          <string comment="Duration of rearrangement">Default</string>
         </property>
-        <property name="suffix">
-         <string> msec</string>
-        </property>
         <property name="maximum">
          <number>5000</number>
         </property>
@@ -512,6 +509,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/shadow/shadow_config.ui b/effects/shadow/shadow_config.ui
index 6e1f74ab1e..b37d79f2c5 100644
--- a/effects/shadow/shadow_config.ui
+++ b/effects/shadow/shadow_config.ui
@@ -25,7 +25,7 @@
     </widget>
    </item>
    <item row="0" column="1">
-    <widget class="QSpinBox" name="xOffsetSpin">
+    <widget class="KIntSpinBox" name="xOffsetSpin">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -66,7 +66,7 @@
     </widget>
    </item>
    <item row="1" column="1">
-    <widget class="QSpinBox" name="yOffsetSpin">
+    <widget class="KIntSpinBox" name="yOffsetSpin">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -107,7 +107,7 @@
     </widget>
    </item>
    <item row="2" column="1">
-    <widget class="QSpinBox" name="opacitySpin">
+    <widget class="KIntSpinBox" name="opacitySpin">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -148,7 +148,7 @@
     </widget>
    </item>
    <item row="3" column="1">
-    <widget class="QSpinBox" name="fuzzinessSpin">
+    <widget class="KIntSpinBox" name="fuzzinessSpin">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -189,7 +189,7 @@
     </widget>
    </item>
    <item row="4" column="1">
-    <widget class="QSpinBox" name="sizeSpin">
+    <widget class="KIntSpinBox" name="sizeSpin">
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
        <horstretch>0</horstretch>
@@ -247,6 +247,11 @@
    <extends>QPushButton</extends>
    <header>kcolorbutton.h</header>
   </customwidget>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections/>
diff --git a/effects/snow/snow_config.cpp b/effects/snow/snow_config.cpp
index 50550999b1..a6135a0ca4 100644
--- a/effects/snow/snow_config.cpp
+++ b/effects/snow/snow_config.cpp
@@ -90,9 +90,13 @@ void SnowEffectConfig::load()
     m_ui->snowBehindWindows->setChecked( conf.readEntry("BehindWindows", true));
     m_ui->numberFlakes->setValue( number );
     m_ui->minSizeFlake->setValue( minFlake );
+    m_ui->minSizeFlake->setSuffix( ki18np(" pixel", " pixels") );
     m_ui->maxSizeFlake->setValue( maxFlake );
+    m_ui->maxSizeFlake->setSuffix( ki18np(" pixel", " pixels") );
     m_ui->maxVSpeed->setValue( maxVSpeed );
+    m_ui->maxVSpeed->setSuffix( ki18np(" pixel/frame", " pixels/frame") );
     m_ui->maxHSpeed->setValue( maxHSpeed );
+    m_ui->maxHSpeed->setSuffix( ki18np(" pixel/frame", " pixels/frame") );
 
 
     emit changed(false);
diff --git a/effects/snow/snow_config.ui b/effects/snow/snow_config.ui
index f63f6f4765..9e32e8ea14 100644
--- a/effects/snow/snow_config.ui
+++ b/effects/snow/snow_config.ui
@@ -30,7 +30,7 @@
        </widget>
       </item>
       <item row="0" column="1" >
-       <widget class="QSpinBox" name="numberFlakes" >
+       <widget class="KIntSpinBox" name="numberFlakes" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
@@ -59,16 +59,13 @@
        </widget>
       </item>
       <item row="1" column="1" >
-       <widget class="QSpinBox" name="minSizeFlake" >
+       <widget class="KIntSpinBox" name="minSizeFlake" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px</string>
-        </property>
         <property name="maximum" >
          <number>30</number>
         </property>
@@ -91,16 +88,13 @@
        </widget>
       </item>
       <item row="2" column="1" >
-       <widget class="QSpinBox" name="maxSizeFlake" >
+       <widget class="KIntSpinBox" name="maxSizeFlake" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px</string>
-        </property>
         <property name="maximum" >
          <number>1000</number>
         </property>
@@ -123,16 +117,13 @@
        </widget>
       </item>
       <item row="3" column="1" >
-       <widget class="QSpinBox" name="maxVSpeed" >
+       <widget class="KIntSpinBox" name="maxVSpeed" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px/frame</string>
-        </property>
         <property name="minimum" >
          <number>1</number>
         </property>
@@ -158,16 +149,13 @@
        </widget>
       </item>
       <item row="4" column="1" >
-       <widget class="QSpinBox" name="maxHSpeed" >
+       <widget class="KIntSpinBox" name="maxHSpeed" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px/frame</string>
-        </property>
         <property name="minimum" >
          <number>0</number>
         </property>
@@ -195,6 +183,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/thumbnailaside/thumbnailaside_config.cpp b/effects/thumbnailaside/thumbnailaside_config.cpp
index 8feffdb4a4..346cec6131 100644
--- a/effects/thumbnailaside/thumbnailaside_config.cpp
+++ b/effects/thumbnailaside/thumbnailaside_config.cpp
@@ -87,7 +87,9 @@ void ThumbnailAsideEffectConfig::load()
     int spacing = conf.readEntry("Spacing", 10);
     int opacity = conf.readEntry("Opacity", 50);
     m_ui->spinWidth->setValue(width);
+    m_ui->spinWidth->setSuffix(ki18np(" pixel", " pixels"));
     m_ui->spinSpacing->setValue(spacing);
+    m_ui->spinSpacing->setSuffix(ki18np(" pixel", " pixels"));
     m_ui->spinOpacity->setValue(opacity);
 
     emit changed(false);
diff --git a/effects/thumbnailaside/thumbnailaside_config.ui b/effects/thumbnailaside/thumbnailaside_config.ui
index af79c5c422..0d57e67117 100644
--- a/effects/thumbnailaside/thumbnailaside_config.ui
+++ b/effects/thumbnailaside/thumbnailaside_config.ui
@@ -30,16 +30,13 @@
        </widget>
       </item>
       <item row="0" column="1" >
-       <widget class="QSpinBox" name="spinWidth" >
+       <widget class="KIntSpinBox" name="spinWidth" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px</string>
-        </property>
         <property name="maximum" >
          <number>500</number>
         </property>
@@ -62,16 +59,13 @@
        </widget>
       </item>
       <item row="1" column="1" >
-       <widget class="QSpinBox" name="spinSpacing" >
+       <widget class="KIntSpinBox" name="spinSpacing" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
-        <property name="suffix" >
-         <string> px</string>
-        </property>
         <property name="maximum" >
          <number>30</number>
         </property>
@@ -94,7 +88,7 @@
        </widget>
       </item>
       <item row="2" column="1" >
-       <widget class="QSpinBox" name="spinOpacity" >
+       <widget class="KIntSpinBox" name="spinOpacity" >
         <property name="sizePolicy" >
          <sizepolicy vsizetype="Fixed" hsizetype="Expanding" >
           <horstretch>0</horstretch>
@@ -121,6 +115,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::GlobalShortcutsEditor</class>
    <extends>QWidget</extends>
diff --git a/effects/translucency/translucency_config.cpp b/effects/translucency/translucency_config.cpp
index c16f6a4552..6581af8a32 100644
--- a/effects/translucency/translucency_config.cpp
+++ b/effects/translucency/translucency_config.cpp
@@ -77,6 +77,7 @@ void TranslucencyEffectConfig::load()
     m_ui->popupmenus->setValue( (int)( conf.readEntry( "PopupMenus", 1.0) * 100 ) );
     m_ui->tornoffmenus->setValue( (int)( conf.readEntry( "TornOffMenus", 1.0) * 100 ) );
     m_ui->duration->setValue( conf.readEntry( "Duration", 0) );
+    m_ui->duration->setSuffix(ki18np(" milisecond", " miliseconds"));
 
     emit changed(false);
     }
diff --git a/effects/translucency/translucency_config.ui b/effects/translucency/translucency_config.ui
index 374c7029f5..fd59c63b34 100644
--- a/effects/translucency/translucency_config.ui
+++ b/effects/translucency/translucency_config.ui
@@ -267,7 +267,7 @@
        </widget>
       </item>
       <item row="7" column="1" colspan="2" >
-       <widget class="QSpinBox" name="duration" >
+       <widget class="KIntSpinBox" name="duration" >
         <property name="minimumSize" >
          <size>
           <width>60</width>
@@ -277,9 +277,6 @@
         <property name="specialValueText" >
          <string comment="Duration of fading">Default</string>
         </property>
-        <property name="suffix" >
-         <string>msec</string>
-        </property>
         <property name="maximum" >
          <number>5000</number>
         </property>
@@ -525,6 +522,13 @@
   <tabstop>popupmenus</tabstop>
   <tabstop>tornoffmenus</tabstop>
  </tabstops>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections>
   <connection>
diff --git a/effects/wobblywindows/wobblywindows_config.ui b/effects/wobblywindows/wobblywindows_config.ui
index d21b8d8968..d427dd295c 100644
--- a/effects/wobblywindows/wobblywindows_config.ui
+++ b/effects/wobblywindows/wobblywindows_config.ui
@@ -46,7 +46,7 @@
        </widget>
       </item>
       <item row="0" column="2" >
-       <widget class="QSpinBox" name="stiffnessSpin" >
+       <widget class="KIntSpinBox" name="stiffnessSpin" >
         <property name="minimum" >
          <number>1</number>
         </property>
@@ -101,7 +101,7 @@
        </widget>
       </item>
       <item row="1" column="2" >
-       <widget class="QSpinBox" name="dragSpin" >
+       <widget class="KIntSpinBox" name="dragSpin" >
         <property name="minimum" >
          <number>50</number>
         </property>
@@ -130,7 +130,7 @@
        </widget>
       </item>
       <item row="2" column="2" >
-       <widget class="QSpinBox" name="moveFactorSpin" >
+       <widget class="KIntSpinBox" name="moveFactorSpin" >
         <property name="minimum" >
          <number>1</number>
         </property>
@@ -244,6 +244,13 @@
   <zorder>advancedBox</zorder>
   <zorder>basicGroup</zorder>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>wobblinessSlider</tabstop>
   <tabstop>moveBox</tabstop>
diff --git a/kcmkwin/kwinoptions/windows.h b/kcmkwin/kwinoptions/windows.h
index 3c3fbec495..a227a5ac6a 100644
--- a/kcmkwin/kwinoptions/windows.h
+++ b/kcmkwin/kwinoptions/windows.h
@@ -34,7 +34,7 @@ class QGroupBox;
 class QLabel;
 class QSlider;
 class KButtonGroup;
-class QSpinBox;
+// class QSpinBox;
 
 class KColorButton;
 class KIntNumInput;
@@ -65,8 +65,6 @@ class KIntNumInput;
 #define  FOCUS_UNDER_MOUSE            2
 #define  FOCUS_STRICTLY_UNDER_MOUSE   3
 
-class QSpinBox;
-
 class KFocusConfig : public KCModule
 {
   Q_OBJECT
diff --git a/kcmkwin/kwinscreenedges/main.ui b/kcmkwin/kwinscreenedges/main.ui
index b07b26a26a..c0615a4da6 100644
--- a/kcmkwin/kwinscreenedges/main.ui
+++ b/kcmkwin/kwinscreenedges/main.ui
@@ -72,7 +72,7 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="QSpinBox" name="activationDelaySpin">
+       <widget class="KIntSpinBox" name="activationDelaySpin">
         <property name="suffix">
          <string> ms</string>
         </property>
@@ -104,7 +104,7 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="QSpinBox" name="triggerCooldownSpin">
+       <widget class="KIntSpinBox" name="triggerCooldownSpin">
         <property name="enabled">
          <bool>true</bool>
         </property>
@@ -189,6 +189,11 @@
   </layout>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>KIntSpinBox</class>
+   <extends>QSpinBox</extends>
+   <header>knuminput.h</header>
+  </customwidget>
   <customwidget>
    <class>KWin::Monitor</class>
    <extends>QWidget</extends>