Pro Audio Support

Q:
No sound plays out of the Digidesign MBox when the Digidesign Control Panel has been chosen, why?
 
A:
How to set the Digidesign Control Panel:
1) Apple Menu > Control Panels > Sound > Output tab.
2) Select Digidesign
3) Click on the Main Output slider button. If the Menu bar flashes black, then Active in Background is selected in Pro Tools. If the menu does not flash in black, then the Mac audio will play out of the Digidesign hardware.
How to disable"Active In Background" in Pro Tools:
Operations menu > uncheck "Active In Background".