QWizard controls missing in remote desktop session

Connect via MS RemoteDesktop to a Windows7 Aero Style desktop and run follwing program. (running a VmWare Machine also)

#include <QtGui>

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QWizard w;
w.setMinimumSize(550,450);
w.show();
return a.exec();
}