My aluminum MacBook is slightly uneven. When placed on a table, the left bottom corner (where your left wrist is when looking at the screen) will hit the table like it is wobbling when I put my hands on the keyboard. It's not a huge deal since once my hands are on the keyboard the computer is steady, but it's just a little annoying. I first I thought it was the battery/hard drive cover, but the cover isn't loose, so I'm not sure if that's it or not. It's almost like the bottom left leg is a half mm to short. Anyone else have this problem? I live about 1.5 hours from an Apple store so I want to use that as my last resort. I'd hate to send the computer in for such a small problem but with the price of these things, I just might! Thanks!