I don't know of anyone has experienced this but my 15" 2.53Ghz MBP seems to overheat under Windows 7. The CPU temp is around 60 degrees and GPU near 70 degrees, but all I'm doing is downloading and installing game updates. And even under such high temperature the fan doesn't kick in. I"m wondering if there's something wrong with it. I cannot track/control any fan using speedfan either. Any suggestion?