My ipod seems to suffer from some battery indicator problem... Today it was about 40% when i plugged it into the pc, and the battery indicator immediately became full although the big battery in the centre of the screen shows only 40%. Anyway, that thing didn't charge, so I thought probably it was not time yet. So I installed a couple of apps... played a few rounds of games...and the battery finally see red. So I quit the game and not long after it went back to green! (although it's pretty near 20%) BTW I charged it two days ago on a wall adapter. Is there something wrong with my ipod? Does charging on wall adapter cause this? Thanks.