I attempted to install some RAM yesterday, and three sticks later it would still kp in about five minutes. So the kind folks at my local Mac store ran a hardware test, and discovered that the fan was stalled, overheating my machine, and causing the kp.
So off to Apple for a new fan (I suppose)?
Has anyone here had to send in a PB (15" 1Ghtz Alum.)? And if so, what was your experience with the replacement?