I have a mbp (17in stock from the store) I bought about 8 months ago. One day about a week ago I left it sitting on my desk (turned on) for the day and when I got home it was dead (obviously). I plugged it in overnight and in the morning when I went to turn it on nothing happened. The little light on the power plug was green and the batter indicator showed fully charged. I've tried pretty much everything I can find on the web and nothing seems to work (the battery is sealed so I can't take that out). Anybody have any ideas?