Hello Major Geeks, I have a Dell Dimension C521 with an AMD 64 Athlon processor and an onboard Sigma Tel 9227 CODEC (7.1 Channel Audio). There is no stereo mix control in my recording controls. The main problem is that I play music through my soundcard into yahoo chat rooms, but the volume is so low that listeners can barely here me. I've been working on this problem for a long time. For the time being I am forced to use a $15 dollar external soundcard that really does not compare to my Sigma Tel. In my research I have discovered that Microsoft could possibly have made a deal with some one to disable the stereo mix, wether or not this is true I dont know. If you guys can help me get my Sigma Tel working right I would be forever grateful.