Trying to set myself up for skype, I set myself up for failure! After my test call did not work (did not hear my voice) I played around with the kmix sliders and must have pushed some wrong button combination which left me with a totally clean sheet of kmix, i.e. just 2 mini icons on the top left (like the loudspeaker icon, kmix in the center, and the three resizing icons on the right).
The kmix icon did not show anything I could do to regain the sliders. I checked the board for many similar problems (I have NVIDIA) but no solutions there to fix my problem. Even completely removing and reinstalling kmix did nothing to my blank page. Does anyone have a suggestion? I have no sound whatsoever

I hate to do that to myself! The system has been working perfectly for months, as do all the others.
ebvt
edit: I installed pulseaudio and have sound back but still an empty kmix page(??)