Hi, I just installed the RC version of windows 7 released on the MS website. When I close/open windows, there seems to be a slight lag, i.e. it doesn't close smoothly immediately, it sort of stumbles a little then closes. Same with typing, occassionally there would be some lag. I'm not running any other programs or anything during these lags. The window lags are basically constant, typing a bit better. I was just wondering if anyone else has experienced this lag issue and can shed some light on how I can go about fixing it. Here are my specs: Quad core Q9550 2.83 GHz 8 GB DDR2 1066 RAM Radeon 4870 HD ASUS P5Q-E I installed the 64-bit windows 7 RC and went on the ATI website to download the latest driver. Please help, thanks!