Deauthorizing the iTunes account on an old computer
You have an ancient Mac that's authorized with your Apple ID. Said Mac won't connect to iTunes for the purposes of deauthorization. What to do? Throw the game board up in the air, says Chris Breen.
http://rss.macworld.com/click.phdo?i=ac6f4b4e9c880edbe25ba6a201574d9a