can't create a ring tone .
the Advanced ->"create AAC version" menu is grayed out. all the music I uploaded to iTunes using iMatch. is this choice copyright protected. I tried several albums. the technique was in Mac Life, october 2012, and in help file too. :-( what am I doing wrong. Need ringtones for my new iPhone 5 !!!!!
MacBook Pro (Retina, Mid 2012), iOS 6, mountain lion