diff -r 5dc02b23752f -r 3e2da88830cd src/gui/painting/qwindowsurface.cpp
--- a/src/gui/painting/qwindowsurface.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/src/gui/painting/qwindowsurface.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -43,6 +43,7 @@
 #include <qwidget.h>
 #include <private/qwidget_p.h>
 #include <private/qbackingstore_p.h>
+#include <private/qapplication_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -116,8 +117,10 @@
 QWindowSurface::QWindowSurface(QWidget *window)
     : d_ptr(new QWindowSurfacePrivate(window))
 {
-    if (window)
-        window->setWindowSurface(this);
+    if (!QApplicationPrivate::runtime_graphics_system) {
+        if(window)
+            window->setWindowSurface(this);
+    }
 }
 
 /*!