I've been trying to get ATI Tool to work for about a week now, and keep getting the same thing no matter what i try and do. the following is a screenshot of the error. I have gone to XP Home, and have the same problem. No matter what I click, I get the same pop-up every time. I've asked this question before, on other forums. And haven't go a reply/solution/thought at all that helps me out. My specs: Aspire 680 Watt PSU AMD64 +4800 X2 ASUS A8R32-MVP Deluxe (1) X1900 cf (1) X1900XTX 2x512 (1GB) Corsair XMS Ram (2) Western Digital Corsair SE16 SATA 3.0/GB sec. RAID 0 I am using the latest CCC 6.5 (I got the same pop-ups using 6.3 & 6.4 also) Crossfire is enable now. It still gave me the same pop-ups when I disabled crossfire.