I have a similar problem, a friend of mine has a 2G nano ipod, and i don't know what happened to it, but now it's not working, the iTunes doesn't recognize it, and the computer can't format it, and when i open "my computer" and try to open the drive, it says "please insert a disk into drive F:" so I really don't know what to do with it, I also tried to open it from dos, but it also don't recognize it so :S anyone can help with this??