Ipod nano 5th gen, 8gb. After I connect the Ipod to the PC, it says "Connected, eject before disconnecting", but the PC doesn't recongnize it. After about 30 secs the Ipod just restarts itself /showing black screen, then apple logo, all setting are reset/, then again displays "Connnected, eject..", and then another 30 secs restarts again and so on. It is not shown in Itunes. It doesn't appear at windows devices. But it is charging. Also can't go in "Disc mode". Otherwise, it is functioning perfectly. Music, video, camera, everything is OK.
It is tested on the laptop, with Windows 7, and on the PC with Windows XP.