When I do a clean install of windows 7 I can move windows around the screen with no lag or juddering, however when windows media player is open or anyother graphical app is open on my left hand monitor (secondary) i get juddering and lag moving windows around. My system should definatly not be gettign this, and i have updated my gfx drivers. Any ideas? EDIT: I also get juddering and lag when a graphical app is on the right hand monitor but not always. System Specs: ASUS Striker Extreme Mobo, Intel Core 2 Duo @ 2.4GHZ, 2GB 1066MHZ RAM, 3 HD's in a RAID 0 for system, 2 Storage Drives, 8800GTX graphics, Creative x-fi xtreme gamer soundcard, 2 x 22" widescreen monitors at 1680 x 1050.