No doubt that the problem is my Sound Blaster Live 24bit external.
I just enabled my onboard soundcard and made a new install and then everything worked.
But somehow i need to get that SBLive soundcard to work because my computer is standing 15 meters away in another room (to prevent noise)
and i am sending the sound via coax cable and my onboard soundcard does not support that.
How to get my SBlive "card" to work
BTW. I have audio (When you can see and hear me......)
So maybe the problem is this amixer thing somebody talked about