diff -u -r qt-everywhere-opensource-src-4.7.1_ori/src/gui/graphicsview/qgraphicsscene.cpp qt-everywhere-opensource-src-4.7.1/src/gui/graphicsview/qgraphicsscene.cpp
--- qt-everywhere-opensource-src-4.7.1_ori/src/gui/graphicsview/qgraphicsscene.cpp	2010-11-06 02:55:14.000000000 +0100
+++ qt-everywhere-opensource-src-4.7.1/src/gui/graphicsview/qgraphicsscene.cpp	2011-12-02 11:40:21.000000000 +0100
@@ -1263,6 +1263,12 @@
         // ### This is a temporary fix for until we get proper mouse
         // grab events.
         clearMouseGrabber();
+        
+        // The above fix prevents mouseReleaseEvent to be sent to
+        // QGraphicsItem::mouseRelease and so initialPositions is not clear
+        // item still do not receive the mouseReleaseEvent, but this solves
+        // wrong positioning
+        movingItemsInitialPositions.clear();
         return;
     }