my app was working first.......
Qt Code: 
  1. #include <qapplication.h>
  2. #include <qsplashscreen.h>
  3. #include "mymainform.h"
  4. int main( int argc, char ** argv )
  5. {
  6.     QApplication a( argc, argv );
  7.  
  8.    if (!QGLFormat::hasOpenGL())
  9.        qFatal("This system has no OpenGL support");		
  10.  
  11.     QSplashScreen splash(QPixmap::fromMimeSource("splash.jpg"));
  12. 	splash.show();
  13. 	splash.message("Loading ... please wait", 0, QColor(255,255,255) );
  14. 	a.processEvents();
  15.  
  16. 	myMainForm W;
  17. 	//W.resize(600,500);
  18. 	a.setMainWidget(&W);    
  19.  
  20. 	W.show();
  21.     a.connect( &a, SIGNAL( lastWindowClosed() ), &a, SLOT( quit() ) );
  22. 	splash.finish(&W);
  23.     return a.exec();
  24. }
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