I have an iPod touch 2nd gen and it was working fine until recently I noticed the tilt sensor randomly glitched out. By this I mean the iPod thinks it is slightly tilted when held evenly horizontal. I proved this when I went to play the app falling balls and I had to hold it on an angle to keep the little man in the middle. When I hold it straight he runs to one side because of the defect. Is there anything I can do to repair this personally or do I have to send it back to apple.