When my pb came, it had a couple problems with it. The screen had a blue line down one side, and the trackpad was cracked. I sent it back, and they replaced those parts, probably just giving me a whole new outer casing. I've started to notice that it wobbles some, though. The front right corner is higher up than the rest. Do I send it back in? I'm not sure if most pb's are like this or not. Thanks