My computer is refusing to detect my iPod. I plugged it in, and restored due to prior problems, then it was working fine. Then a syncing error happened. It synced only 294 songs out of 304. It wouldn't sync again because for some reason it was disconnected without me even noticing. Now, it won't recognize it at all. I shut the iPod off, and plugged it back in. I wonder if I should do another restore. Help.