I just bought a 3rd gen ipod from my friend for reletively cheap. I got some stuff for it today and when i plug it in my usb it says "USB device not recognized" so itunes wouldn't detect it. It's most likely a usb issue becasue the ipod works fine and i had it charging/playing in my car without any problems. I just can't connect it to my computer to get his shitty music off and my good music on. I dunno what to do.

EDIT: I checked the device manager, all usb ports are working properly, or so it says.