Ok so I got a new powerbook in Feb. 12" 1.5Gz, 512mb RAM, superdrive, etc etc. when I first used it I remembered that the fan did not come on that often, and I really liked the fact that my powerbook remained quiet very often. it seems like lately the fan comes on a LOT, and i'm not even runing any applications, just have the powerbook on, with word. The fan doesn't take a while to come on either, seems like a few minutes after I turn the machine on, the fan comes on. weird? It is getting hot in southern california lately. Should I be worried?? am i overreacting?