I have no audio /Mainstage 2.2 in MacbookPro--
All outputs are assigned correctly(Internal sound card-output 1 and 2) in general pref. and on channels-- control from Axiom Pro is verified but I have no audio at all(except from the speaker test)--also can't find how to load ext. plugins tho I found a page that says they are recognized and verified
MainStage, OS X Mountain Lion (10.8.2), Using internal sound card