I just restored my iPod to a factory-fresh 1.1.3 last night and synced my music over and everything went fine. Today, I can't get any of my purchased music to play on it. The January Software Upgrade works fine, I just can't get iTMS content to play. It LOOKS like it's playing but, it's silent. Is there anyway around this problem? Do I have to restore again or re-sync? Anyone else ever have this problem?