Hi, I am running the DP of 10.10 on a 2013 Mac Pro and the most annoying thing is that it's not controlling the audio output (sounds in system prefs): It seems random, selecting an audio device does nothing, the volume slider is not affecting actual output volume, the sound effects tab has the same problem, it just won't properly control the hardware and whether the internal speakers or the line out is selected just seems to be random. Has anyone found a fix or workaround? Thanks 