I just got a new 15 inch PowerBook with an 867MHz G4, and I have noticed the fan kicks in when under practically no load. Right now as I'm typing this, I only have Safari open, and both the rear and the right hand fan are going full blast. Is this normal? The fan comes on after a few minutes use and stays on. It has never cycled off. It's quite annoying. The battery life is not quite what I expected either, probably due to the fans. It's beginning to make me miss my 600MHz iBook that I traded up from. Any help would be appreciated.