Fix Itunes Maximize Feature
To change iTunes green button function from switching to mini player to maximizing iTunes type the following into Terminal
defaults write com.apple.iTunes zoom-to-window -bool YES
Restart iTunes if you don’t already have it closed. The function of the green button should have changed. You can now maximize iTunes by pressing the maximize button. If you want to switch the mini player, press Alt plus the green button. The roles have changed.
If you want to reverse the functions back to the original preferences type the following into Terminal.
defaults write com.apple.iTunes zoom-to-window -bool NO
Restart iTunes if needed.