I have been playing iTunes from an external drive for a couple of years. I got a new MacBookPro and have set up my alias "iTunes Music" to point to the external drive. However, none of the music shows up. I can't figure why. I even deauthorized my old MacBookPro, which I really didn't need to do cuz the new one was number 5. But nothing... Anyone know the remedy? I even tried to drop my iTunes prefs from the old MacBookPro, but the Genius pref kept saying it was in use even when iTunes was shut down.