Just got by 80GB today. It appears that the backlight stays on (granted it eventually goes into a dimmer mode) the whole time the unit is docked or variously plugged in to a USB port. This appears to be the case even if the backlight is turned off in "settings" on the iPod itself. Is this right or have I missed something? Why would the light not eventually shut down? I can see this being annoying when I use it docked as an alarm clock. . . Anyone have any wisdom on this?