Sorry for lack of detail. I am using an analog connection directly to the TV. I had sound up until the time I reloaded the system. I used the 8.10 DVD and followed the wiki for installation. I connected my laptop as a new media director and audio works fine on it.
Hope this helps
Ok long shot here,
Are you using hdmi for video by chance?
If so check xorg.conf
If Usedid=true try setting it to false.
I have seen where the Tv will shut off its analog audio input if it detects a digital audio capable connection.