diff --git a/src/core/qgsvectorlayer.cpp b/src/core/qgsvectorlayer.cpp
index 0249f7c..ac7a00d 100644
--- a/src/core/qgsvectorlayer.cpp
+++ b/src/core/qgsvectorlayer.cpp
@@ -733,6 +733,7 @@ void QgsVectorLayer::drawRendererV2( QgsRenderContext& rendererContext, bool lab
         break;
       }
 
+#if 0 // MK: disable this totally as it breaks QT painting engine (can result in recursive repaint)
 #ifndef Q_WS_MAC //MH: disable this on Mac for now to avoid problems with resizing
       if ( mUpdateThreshold > 0 && 0 == featureCount % mUpdateThreshold )
       {
@@ -746,6 +747,7 @@ void QgsVectorLayer::drawRendererV2( QgsRenderContext& rendererContext, bool lab
         qApp->processEvents();
       }
 #endif //Q_WS_MAC
+#endif
 
       bool sel = mSelectedFeatureIds.contains( fet.id() );
       bool drawMarker = ( mEditable && ( !vertexMarkerOnlyForSelection || sel ) );
diff --git a/src/gui/qgsmapcanvas.cpp b/src/gui/qgsmapcanvas.cpp
index fb1ef51..eb5637b 100644
--- a/src/gui/qgsmapcanvas.cpp
+++ b/src/gui/qgsmapcanvas.cpp
@@ -84,6 +84,7 @@ QgsMapCanvas::QgsMapCanvas( QWidget * parent, const char *name )
     , mAntiAliasing( false )
 {
   setObjectName( name );
+#if 0
   //disable the update that leads to the resize crash
   if ( viewport() )
   {
@@ -91,6 +92,7 @@ QgsMapCanvas::QgsMapCanvas( QWidget * parent, const char *name )
     viewport()->setAttribute( Qt::WA_PaintOnScreen, true );
 #endif //ANDROID
   }
+#endif
 
   mScene = new QGraphicsScene();
   setScene( mScene );