I've had my Powerbook for a little over two months now and I absolutely will never go back to a PC. However, there is a really strange problem that just cropped up. The machine randomly shuts down. I believe it has to do with the battery, but the battery meter shows ~35% just before it shuts down. So, I plug it in, and it starts back up. I charge it untill the power plug glows green instead of orange but it only charges to 99%. Is my battery showing signs of memory after only two months? What's going on?