Displaying iTunes visualizers full screen on 1 display?

[aaquib]

I currently have a 20" ACD connected to my MB so I rarely even look at the Macbook. I was wondering if I could have the visualizers play full screen on the Macbook. Whenever I try hitting command + F to go full screen, it just turns the Cinema Display's screen black.

Any suggestions?

 

[Inconsequential]

Front row does this too.

Pain in the backside