Q3DockWindow flickers when resizing on Windows [REG]

#include <QtGui>
#include <Qt3Support>

int main(int argc, char **argv)
{
	QApplication app(argc, argv);

	Q3MainWindow main;
	Q3DockWindow *m_simulationPanelDockWindow = new Q3DockWindow( Q3DockWindow::InDock, &main);	// create dock window 
	QTextEdit *m_simulationPanel = new QTextEdit	(m_simulationPanelDockWindow);	// create sim panel, parent = doc window 
	m_simulationPanelDockWindow->setWidget(m_simulationPanel); 
	//m_simulationPanelDockWindow->setCaption("yadiyadi"); 
	//m_simulationPanelDockWindow->setCloseMode(Q3DockWindow::Always); 
	m_simulationPanelDockWindow->setResizeEnabled(true); 

	main.addDockWindow(m_simulationPanelDockWindow, "Simulation Panel", Qt::DockRight); 
	//main.moveDockWindow(m_simulationPanelDockWindow, Qt::DockRight); 

	main.show();
	return app.exec();