Last night while typing on my PBG4 I accidentally unplugged it and it just shut off. Lately it has only been working if the adapter is plugged in, so for the past few weeks I've had it plugged in constantly. Except when I'm taking it somewhere and I unplug the adapter from the wall and while the PBG4 is closed it will stay on. At one point in time it was only charging to 67%, and would go up 1% seemed like every hour. At that time I thought surely it was about to die on me. But here I am a few weeks later and I figured that if I just keep it plugged in I'll be alright. But I miss the "wireless" concept of having a laptop. Can anyone assist me as to why my powerbook stays at 100% [yes always plugged in] and why if the power adapter is not in, it no longer works? Thanks in advance. I believe I've provided all needed information.