I'm working on a Dell Inspiron 9200 which has 2 tweeters and a sub built into the chassis. The good news is the sound is working fine. The problem is the sound has to be controlled by 2 different sliders inside of the gnome audio mixer (I'm running Ubuntu Dapper 6.06 btw) because the sub is controlled with "Master M" and the tweeters are controlled with "Master". The laptop has a multimedia panel on the front which will let you control volume with audio up and down buttons but those buttons will only control "Master". Is there any way to link "Master" with "Master M" so the buttons on the front will turn both sliders up and down at the same time?