[CrazedVW]

Here's my dilemma. I just bought a new Powerbook. It won't let me play the music I purchased through the iTunes Music Store because it says I've already authorized three computers.
Problem is I no longer have the others. I had two iBooks, the 2nd one being a replacement after Apple declared the first one a lemon. That would make two. The best I can figure is that the third is coming from having the first iBook authorized a second time after it got repaired one time. (I hope all that made sense.)
So, how do I deauthorize computers I no longer have? I'm at a loss here.

Thanks.

[Angus_D]

AFAIK, you don't, you have to deathorize them before you get rid of them. Yes, this sucks.

[voyageur]

According to Apple's Knowledge Base, you should contact them to deauthorize a computer to which you no longer have access: Knowldege Base Article

That would make it sound like it's possible.

[Art Vandelay]

It also says how in the help section of the iTMS. In short, you have to contact Apple to deauthorize a computer you no longer have.