I am trying to fix a 1st Gen Nano that freezes when you plug the USB cable into the computer. Hard resets get the iPod to reset and enable it to be unplugged without the "Do Not Disconnect" screen being present, but if you leave it on the USB cable it just resets and freezes once again. Both iTunes and the DiskUtlity do not recognize the iPod being plugged into the computer. All I want to do it completely reset the Ipod. I am not too familiar with the workings of flash memory iPods. What could be wrong with this thing? Is it a dead duck? Please assist.