In the new iTunes 8.2, I can't re-import a .m4v movie file that was in the library. It copied in the first time without a problem but when I tried to add album artwork, it bombed. I thought that perhaps deleting the movie from the library and re-importing it might help, as I've done this in the past. THIS version of iTunes acts like "I've had my shot" and refuses to add the file back in and refuses even to play it! Double-clicking does nothing. I tried repairing permissions to see if that would help but it didn't. Anyone got a clue about what else I can try?
2.8 GHz Mac Pro, 2.4 GHz MacBook Pro (both late 2008), Mac OS X (10.5)