I'm on the road with my iBook 14" 1.33ghz. Upon start up, I got this weird blank screen and a LOUD fan noise. Then nothing. Then I hit the power button again and everything's fine, as is, I am typing on MR right now. ] Anyone with the same experience? Somehow, I thought maybe I had jostled the memory out of position or something? But then it started up just fine. ? Weird.