My sister has a two year old PowerBook G4 12". She's had this problem where the aluminum bends out of the case. It's been going on for about a year. It's now so bad, that if she wants to charge it, she needs to push and hold the charger in. This is clearly not good, and I've heard of several other 12" models experience the same problem. Is there anything we can do about it, or are we going to have to ship her a MacBook? Thanks!