I need some help rather quickly. I am about to buy a used mac. It is under applecare 3 yr warranty for another year or so. The owner of the mac bought it second hand, I will be the third owner. He has no documentation of the warranty, but on apple's website, with the serial #, it states that the computer is still under applecare for a year. Will this be a problem if I need service? Is the applecare tied to the serial number, regardless of owner, and will I get any grief? I was going to say I received it as a gift if anyone asks.