This is a partial duplicate of 383756, except that this is for 9.04 with no sound. 383756 is for 9.10 with sound, but lack of separate control from external versus internal speakers.
This is a partial duplicate of 383756, except that this is for 9.04 with no sound. 383756 is for 9.10 with sound, but lack of separate control from external versus internal speakers.