I am try again to get help on this issue. I am attaching a link to another thread I have elsewhere on the topic. http://ubuntuforums.org/showthread.php?t=1901598. I am hoping someone can shed some light on this issue. Basic background is when I install the NVidia Driver found under Additional Drivers it breaks my audio. Before installing this driver all is well and works perfect. How the heck can a display driver break my audio? Also I have tried them all, as in the 4 available choices present in the list. Luckily I can simply remove the driver, restart, and audio returns without fail. Please someone help me understand how this can happen. I am running a PNY GeForce 8600GT.