diff --git a/client.cpp b/client.cpp
index 15260bb67b..69874bee20 100644
--- a/client.cpp
+++ b/client.cpp
@@ -927,6 +927,8 @@ void Client::mouseMoveEvent( QMouseEvent * e)
 	    break;
 	}
     }
+    
+    QApplication::syncX(); // process our own configure events synchronously. 
 }
 
 /*!