Hello, I recently purchased a macbook for $900 on ebay. It arrived in the mail with nothing but the actual laptop; no power cable, utility discs, charger, anything. I had to go to the apple store and buy a charger and when I turned on the computer it has the previous owner's login name and it's asking for the password. Since then I've sent numerous e-mails to the seller and have had no response back. Which is leading me to the impression it was either stolen, or just flipped on ebay. My question is - how can I reformat the computer myself? Can I just go buy reboot discs? Bring it to the apple store for a tech to fix? And if I bring it to an apple store and it was a stolen macbook will I be reimbursed if confiscated? Any feedback would be helpful, I have absolutely zero knowledge with macs and just about the same with general computer knowledge.