Whenever I quit a game, my computer will lag for a good 20 - 30 seconds while it rebuilds the desktop. WHY?? I think I need more RAM, but that doesn't make much sense since I always have a good 50 MB free when I play games like CS. But when I quit, I have to wait. In sandra, my RAM benches about 400 MB/s less than what it should bench at. I'm running Windows XP Professional btw. Help please!