I've been having framerate issues with Bootcamp on my MacBook and was hoping someone here could help out. I run a 2009 13.3 MacPro with 9400 256 and 8GB Memory, Windows XP. When I play games I have periods of high framerate then it will randomly slow down dramatically, even on games with very low minimal requirements. For example: Dawn of War 2 requires a 6600 128 but it still have huge framerate issues. Sometimes it will settle down into normal framerate or stay low for hours on end. Same for ME2 despite the higher requirements. Sometimes I can play all day with high framerate, others it'll be choppy. I don't have the same problem with MacOS, only Windows XP. I've read that it might be an overheating issue, but I don't know how to test that, or what to do about it. Can anyone make a suggestion on how to fix my Mac, or a solution to the framerate issue? Edit: Using iStat Pro I've found the fanspeed is about 3700RPM when I'm using MacOS to browse Safari. Nt sure how to monitor it in Bootcamp. I also can't seem to get Apple Hardware Diagnostic running. I think I need my install disks, but I'm at uni and have no access to them at the moment.