I have been Windows Vista Ultimate 64-bit. I've heard Windows 7 is more stable then Windows Vista, so i switched to Windows 7 64-bit. Wow! Its beautiful and super fast..! But i have only one issue... CS 1.6 does not work... When i start Counter Strike 1.6, i get a black background and just hear the music, when i move the mouse i hear the menu sounds and i know that it has started but no display..! I use nvidia Geforce 8400GS. Driver version : 182. Help Guys!