QTfrontend: Fix flickering and bad offset of control config popup If you opened the pop-up to change a key, there was a very short flicker at the left side and the pop-up had a bad offset which sometimes caused entries to be out of screen bounds.

#include <QtGui/QApplication>
#include "mainwindow.h"

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