2nd generation Ipod nano not syncing?

My 2nd generation Ipod nano won't sync up with my Itunes library anymore after updating to Mountain Lion and the latest version of Itunes. I plug it into the USB port on the laptop and the Ipod beeps and seems to be getting charged by the laptop but no sign of connectivity on Itunes. I've also got an Ipod shuffle that I used just earlier today and it seemed to work fine with the same set up. I'd like to switch back to using the Nano though and it seems to work fine other than Itunes not recognizing it now. I know it's old but if it seems to work fine and i'd like to keep using it if I can sync it up. Early 2011 15" Macbook Pro OSX 10.8.2.