Hi Guys. I have an ATI TV Wonder 550 on an OLD HP Pavilion 7915. It has a Realtek 97AC Audio on it. NOW i have HT TVR installed on the box and I can see the channels fine. I can't hear out of it. This has me thrown for a loop. I have tried all teh audio inputs. there is one taht says TV-TUner Audio and its turned all the way up and I still can't hear from it. What should I do? I have tried all the audio options and I still can't hear from it. What should I do?