cursorPos() needs fixing

svn path=/branches/work/kwin_composite/; revision=645024

COMPOSITE_TODO

@@ -69,6 +69,8 @@ General TODO
 *   - perhaps there should be an option not to unmap windows in order to always have live thumbnails
 *       - another option could be to unmap but quickly map when a live thumbnail is needed
 
+* cursorPos() does not work reliably now (not from e.g. timers, it needs events), so it's disabled
+
 
 OpenGL TODO
 =================================

utils.cpp

@@ -430,6 +430,7 @@ static Time last_cursor_timestamp = CurrentTime;
 
 QPoint cursorPos()
     {
+    last_cursor_timestamp = CurrentTime;
     if( last_cursor_timestamp == CurrentTime
         || last_cursor_timestamp != QX11Info::appTime())
         {