So I bought this used PowerBook G4 12" Al. From my other posts, its been determined that it has some form of logic board problem. While at the store, I could swear that he told me that they offered a $310+tax free to check it out and fix anything they deem to be a problem. Since this is almost what I paid for it, I'm not sure if I can justify the cost. What do you die hard 12" Al fans think? Is what the guy at the store true? Is it only $310+tax to fix anything/everything?