I have a Nano 1st gen 2gb device, like a noob I had it plugged in when I ran defrag, and the thing got defragged, since then it will not go into sleep mode. I did the play/center button reset dealie, and it still happened, even did a restore to the ipod from itunes, and it still happens. Only time it does sleep is if its plugged into the wall, then it will sleep, but problem repeats as soon as its woken up. Suggestions, or am I just screwed until I can replace it?