I just got a Macbook pro from one of my friends (it had broken and he had got a new one for christmas). He just gave me the computer and not much else, except a case. He said I could take it home and play around with it to see if I could get it to work. Well, after visiting Apples troubleshooting page, etc. I figured I would require special help to fix this computer. However, I wondering as to if I can get this computer replaced under warranty? I don't have any of the paperwork that came with the computer so is this possible?