When I quit my program, one of two things happens: 1: The program exits to the desktop 2: The program exits to the desktop and the screen starts flashing black. if 2, then it will only stop flashing when you run another program. When I exit this program, 1 or 2. This is annoying. I need to know what exactly is wrong. My display mode is OpenGL and I'm using sys.exit(1) to exit.

Do I put it in the quit function, or at the very end of the program and not use sys.exit()?

[edit: ok, it's working 100% of the time now, thanks!!]