My MacBook Pro has begun to have this issue where the left side of the space bar seems to have something preventing it from being pushed down all the way. When I press down on the right or center of the space bar, it makes the normal keyboard click sound you'd expect. However, the left side makes very little noise and won't register the space. Is this a common issue for unibody MBPs? Is there anything that can be done other than taking it to Apple? I'd rather not have to put my optical drive back in the machine to utilize my AppleCare.