This code causes my app to crash on an iPhone 4 and on the simulator but works perfectly fine on a 3GS. Any ideas why this might be?
-(IBAction)startButtonClicked{
GameViewController *screen = [[GameViewController alloc] initWithNibName:nil bundle:nil];
screen.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController:screen animated:YES];
[screen release];
}