diff -r dee5afe5301f -r 3f74d0d4af4c src/opengl/qgl_mac.mm
--- a/src/opengl/qgl_mac.mm	Mon Mar 15 12:43:09 2010 +0200
+++ b/src/opengl/qgl_mac.mm	Thu Apr 08 14:19:33 2010 +0300
@@ -951,8 +951,6 @@
             break;
         current = current->parentWidget();
     }
-
-    isGLWidget = 1;
 }
 
 bool QGLWidgetPrivate::renderCxPm(QPixmap*)