My iPod nano completely stopped responding. It was sitting on a table, then i went to get its usb cable, since the battery was low. I come back and it's off. I'm like, "no biggie, just auto off" But it doesn't respond when on the charger. Then i notice something's wrong. I press the center button, press other buttons, shake it, tip it sideways, plug in the earbuds, nothing. It's been on the charger ever since, and still doesn't respond. And no, i didn't drop it or anything, it was just sitting there when it happened. Any info is appreciated. Thanks!