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Picture 1.JPG
 
Other than iTunes and a few other apps, you can get the green button to full screen if you have the app RightZoom.
 
I was never able to get this to work for itunes using either method.
I've never tried it. One of the things I've discovered in the transition from Windows to Mac OS X is the increased productivity that comes from not using full-screen on everything.
 
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