i was converting my son's iPod to upload the entire playlist. it was connected to a PC, but now wants to use my list. iTunes asked to load updates for the iPod and i said, "okay." after the update, it tried to load all of the songs from the library (1135) and froze (after 35). so after unloading the disk image, it hung up and wouldn't give me permission to disconnect. now it won't leave disk mode even though i charged it all the way. it allowed me to do a hard re-boot once, but now won't reset at all. any help here?