Thanks a bunch for clearing that up for me guys. I was just trying to figure it out because I'd been having some weird problems playing SCii. The screen would flicker, or blink a little, and when it came back to the screen, units and buildings were black. In extreme cases, the screen would blink and actually black out the whole screen and the only way to make it go back would be to alt+tab out and back into the window. I know my card has plenty of juice to run the game, and I've never had the problem before. Obviously, I'm getting off topic, but do any of these symptoms sound familiar??