After downloading rockbox to my 1st gen ipod nano and playing around for a while i was running a plug-in called star and my screen froze all of a sudden. I can't turn it off, my computer won't recognize it as a disk when earlier all I had to do was unplug and replug my ipod into my computer, and I don't know what do do or even how to turn it off. I'd like to just uninstall rockbox and put the original software back on it. Can someone help me?