I sure hope this is as dumb a question as I think. I'm setting up to travel with a laptop and a USB interface and headphones, rather than my usual studio setup where BiaB's output runs through my external mixer and monitors. But I can't seem to find a way to get BiaB to play back through the USB interface. Even though that is selected in the system's AudioMIDI Setup, BiaB still plays back through the crappy little internal speakers on the MacBook Pro. What am I missing??