recently i have played cs 1.6 and i have been playing on 800 *600 resolution, and everything is fine execept i only get 60 fps because of my computer. So then i wanted to change it to 640 *480 resolution to get better fps, which it did. But playing for a couple of days everything was fine, but now everytime i play at the 640 resolution the screen would just completly go black when i launch a game or during the game. i would then have to endtask the cs program. I would still hear the in game noise but just no display. everything else on the destop would be fine. If i would change my resolution back to 800 resolution in launch options everything will work i can play. but 640 *480 resoution will no work for me. WHY?