I have a ATI branded 128 MB 9800 Pro (default is 378/338). I just installed a Arctic Cooling VGA Silencer Rev. 3 with Arctic Silver 5 and thought this would be a good time to get some more kick outta my card. I've never OC'ed anything before nor have I used ATITool before, so I dunno if this is normal or what - when I click "Find Max Core", it does it's thing and slowly moves the side bar up to like 415 (take about 30 minutes to do so). But then it starts going back down and eventually reaches 378 again. I cancelled it at that point. It is supposed to do that, count up and then go back down?