My early 2008 MBP has served me for the past 3 years and the Apple Care warranty expired at the end of May this year. This morning I opened my MBP and it made the DVD drive noise it usually does, but the screen didnt come on. I wasnt too worried because this has happened occasionally before, so I closed it for a few minutes, and then opened it again. The thing is that when I closed it and left it closed, it wouldnt go into sleep mode because I could still hear noise from fans spinning, etc. Eventually I decided to force it to shutdown, and then when I pressed the power button to turn it on.... I got the brief DVD drive noise, and then it powered down immediately. Tried a second time, same thing happened. Now when I press the power button, nothing happens at all. I'm HOPING that the battery gave out, since it's been on the fritz for the past 6 months or so. How do I test this? Can I just remove the battery and run it directly from the power source?