I can swear I used to play this game at much higher rez/quality. I remember playing at 1280x720 with all settings maxed out (no AA) and averaging somewhere between 20-30 fps in multiplayer. It was very playable. I have an early 2008 MBP 2.5GHz/4GB RAM/8600M GT 512MB and I've been scratching my head for the last few days because I am getting awful FPS out of COD4 under boot camp and I can't figure it out! I'm playing at 640x480 with all settings OFF (no AA) or LOW and I'm getting about 15 fps average single or multiplayer. Its driving me nuts. I was so annoyed/disgusted I formatted my boot camp partition and reinstalled a fresh copy of Win XP SP3...only to get identical sub-par results....now I've formatted again, and did a fresh install of Windows 7 Ultimate 64 bit and this performance out of my 8600 continues to irritate/baffle me. No difference! Is there anyone else out there that plays this on an 8600M GT? What settings do you use and how does it run? I'm utterly confused and baffled.