[Nullfusion]

i updated my OS X to the newest and also the Drivers of my interface (M Box) and Midi Interface (Midisport 4x4). there is a little program called "Pro Tools Pref and Database Helper". it deletes ALL of the necessary prefs and that stuff. (needs a restart after it) after that my protools played again. the whole bug came back after i was away from my computer for a while, i runned the program again and it worked, but you need to set some of your settings in PT again after running the program cause its kind of defaulted. i also better try that thing with the settings of a session in the audio interface program before starting Protools, that might help. thanks alot!