My CD MBP is becoming a pita. The saddest part is, i didnt buy APP for it.. and now i am regretting. my machine has a very bad fitting problem ever since it came back from the service center. Apparently the top case doesnt line up properly with the bottom case but the service center said its the best they can do. They told me Apple said its normal to have gaps in between the bottom and top case. So after 1 year.. it was getting worse as i noticed more and bigger gaps. so i called up Apple and despite the fact that i had no warranty, they agreed to pay for whatever is required to resolve this issue. I should note @ this point that my machine has already been on the receiving end of another stick of 1gb ram weeks ago, and have had no problems whatsoever. So in my mbp went and when i collected it, i noticed it had a new top and bottom case. Voila. But i went back home and realised it kept powering down by itself, like i had force shut it down. Not only was it irritating, it was extremely unreliable and i am sure to a certain extent, it was slowly damaging the hardware as well. So i took it back, where after subsequent diagnoses by the techies, said that it was the result of a faulty battery. I told them i had no problems whatsoever before i brought my mbp in.. but they said they were very sure it was a faulty battery. What timing right? Well they gave me a new one free of charge, because i was under the battery exchange program. Funny thing is, i had already had my battery changed once, 7 months into my 1st year of owning the mbp. So it looked ok the 2nd time i brought it back home.. but now its still developing sudden shutdowns. I really dont know what to do now. its not OS based as it happens both in Xp & OSX. It happens whether the power is plugged in or not. Can it be the ram? But i swear it has not been giving me any problems before. Any ideas?