This PowerBook has been driving me crazy this past week or two. It seems it's in need of a lot of TLC & maintenance. This problem I'm having at the moment is with the noise of the fans, there's the CPU fan and the Power Supply fan. The CPU fan spins up quite a lot, 80% it spins pretty fast, but the noise is bearable. But then it seems to vibrate/shake around and it makes one hell of a racket. Then there's the Power Supply fan, this thing spins up randomly it seems, but when it does, it makes a terrible sound. It spins round ferociously. I've been inside and gave the two a good ol' dusting and clean but it hasn;t made the slightest difference. Can anyone recommend what to do to quiten the little buggers? Thanks again.