Hey, I was watching the trailer for "12" and noticed that the sound wasn't coming out of the line out, but instead was coming from the built-in speaker.
I used the settings icon from within the trailer's HUD. It correctly bropught me to the Audio settings tab which read "analog" so I mouse clicked the arrow key to switch outputs. Upon clicking, the UI switched to a slightly different audio settig interface and then quit.
This is a fresh install from version 0.9.3964 running on OS X 10.5.5, dual 2.66 Intel 2gb RAM with a NVIDIA GeForce 7300 GT, no S/PDif in use.
boxee running on main monitor- 2nd monitor was on and had safari running.