I'm having issues with my Powerbook not charging. Every 15 minutes or so, it will stop charging and start running off its own power. When I unplug it and let the power adaptor unit sit for a while and replug it again, it'll start charging again for another 15 minutes or so. It does this regularly, but it's been fine for the past 2 months. I took the power adapter unit in and tested it and found that the poweradaptor is defective. I hate to say it but APPLE SUCKS.Today i called and try to get a replacement for my newly bought power adaptor unit of which i bought only 2 months ago. But for some strange reason the APPle company assumed that my newly bought power adaptor unit wasn't under warrenty even though it is clearly stated on the manuel that its got 1 YEAR WARRANTY(this is an Apple made power adaptor unit by the way)I clearly told the four people that I purchased the power adaptor less then 3 months ago but they still insist that i bring it back to the place i got it from(CompUSA)and get them to replace it. But of course the replacement warrently at Compusa was up, and i wasn't able to do anything about it. i called Apple back and told them about the situation and they still gave me the same BS. .....i called again and this time someone else from APPle told me that the 90 day warrenty was up, at this point i dont' know whats that person was talking about, I never did get my power adaptor unit replaced, but the manager at compusa was nice enough to let me return the power adaptor after the return policy time period was up. All i had to do was purchased the 2 year replacement warrenty and it will be worth every penny. Now i dont have to deal with Apple's Bull*****. Hopefully on one has to go though what i did, Apple will never get a penny out of me again.