My Ipod is Running 3.0. Lately I've been having a strange problem. Once in a while the Backlight turns off completely. At first I thought my ipod was freezing. But a closer look indicates that the iPod is still on, with absolutely no backlight. After pressing the hold button a couple of times the backlight turns back on. The backlight randomly turns off with no warning and comes back on whenever it feels like unless I alternate sleep mode again. Auto-brightness is off. What could the problem be?