On all three MacBooks that I've owned, I keep experiencing the problem of screen hinge creaking. My 2008 Macbook Pro's lid randomly decided to become misaligned from the lower body, and started creaking loudly and annoyingly. My 2009 13" Macbook Pro's lid just started creaking. My 2011 15" Macbook Pro's lid also became misaligned and started creaking loudly. Why do all of the Macs I've owned do this? None of the store display models do it. Also, why does the screen hinge of the 15" get misaligned so easily? I've accidentally run my 13" over with a small car, and the hinge is still perfectly in place (but this was years before it started creaking). Do you think I can get a repair on my 15" Macbook Pro? It was purchased in January 2011, but I've babied all of my electronics (except for the car incident - that was an accident).