so, in a fit of boredom, I decided to finally install the latest software update. everything chugged along nicely, and I ended up with the screen going black, then returning with an image of a USB cable and the iTunes logo.
“Fine,” I thought. All done. Except that now, all I can do is look at a picture of a USB cable. There is no functionality. The buttons, they do nothing. Power-cycling just brings up the USB picture. How screwed am I?