HI, Since upgraded to 10.7.2. My Macbook Pro (Mid 2010) got weird... when I'm only running 1 app at a time. (like Safari or Mail app). First 10 mintiues the fan RPM is 2000. and after 15 mins later it increase up to 6000 RPM. I do not know why!!! T_T I'm not even running heavy application. It repast over and over again!. this is really frustrating.. very loud... So can anyone help me why my macbook fan runs up to 6000RPM randomly.. and back to 2000RPM and after 10 mins later 6000RPM -> 2000RPM -> 6000 RPM. (repeats).. It happened since upgraded to 10.7.2 Lion. I Just clean installed Lion but problem still stands..