Just recently my fans would start to buzz a little on my MBP. I just thought to myself, oh god, why now, it's over warranty and i really don't want to deal with this. Got a little pissed at it, so i just smacked it like most things i get pissed at, but which usually cost under 10 dollars, not a 2k laptop. Needless to say, it works perfectly. A little "tap" on the metal above the f- keys, and no problemo, quiet as a baby (whilst sleeping that is). Ahhahahaa, my engineering degree is starting to pay off.