I had Windows 7 installed and GPU-Z said SLI was enabled for my 2 GTX 285's. Then I had to format and go back to XP for a couple of older games I was playing that Windows 7 wasn't getting along with. nVidia control panel claims SLI is enabled, while GPU-Z is saying it's disabled. The sensors from GPU-Z also seem to say the 2nd card is fairly cool which is also making me think it's disabled. Any ideas why this might be happening and how to fix it? I've tried reinstalling the latest drivers but that hasn't helped.