i experienced a most troubling problem with my 5g ipod earlier today. i was in the middle of listening to the song, and when i went to the menu to select another track, the thing just froze completely. at first i thought it was just a delay or something caused by the drive head reading. and that was when i realized that the scrollwheel and buttons had ceased to function altogether (and no, 'hold' wasn't on). also, the backlight was locked on (when i normally have it set to 5 sec). i tried plugging it into my pb (both usb ports) to no avail. ipod updater didn't see it, nor did itunes. the screen was completely locked. ultimately i just left it out and let the battery drain, and now it seems to be working fine. i've seen a few other threads her about freezing in the 5g, but what concerns me here is that i couldn't even reset. scary frustrating. anyone else experienced this, or have any idea what might have caused it?