I just bought a new nvidia video card for my compaq desktop. I installed all the drivers and software. I want the sound to go out of the hdmi port from the video card. When I go to the control panels sound device nothing else listed under sound devices except for the realtek audio device which is what came on the compy originally. I have restarted the computer of course several times. There is no yellow explaination points in the device manager and it says that the nvidia device is working properly in the properties box from the device manager. But when I plug the hdmi cable up to our hd tv there is no sound. The sound only comes through from the onboard sound card. Any help would be appreciated.