QGraphicsView arrow cursor

[Alundra]

Hi all,
There is a big problem on windows 8 when changing the cursor of QGraphicsView using that :

void CEditorNodeView::mousePressEvent( QMouseEvent* event )
{
	QGraphicsView::mousePressEvent( event );
	viewport()->setCursor( Qt::ArrowCursor );
}
 
void CEditorNodeView::mouseReleaseEvent( QMouseEvent* event )
{
	QGraphicsView::mouseReleaseEvent( event );
	viewport()->setCursor( Qt::ArrowCursor );
}

void CEditorNodeView::mousePressEvent( QMouseEvent* event )
{
	QGraphicsView::mousePressEvent( event );
	viewport()->setCursor( Qt::ArrowCursor );
}

void CEditorNodeView::mouseReleaseEvent( QMouseEvent* event )
{
	QGraphicsView::mouseReleaseEvent( event );
	viewport()->setCursor( Qt::ArrowCursor );
}

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The arrow change to hand cursor to go back to arrow cursor on both situation, press and release.
That makes the rendering really bad. I hope Qt has a workaround to make the rendering better.
Thanks for the help