I would like to upgrade my Intel X48 based (MSI X48C Platinum) machine to allow HDMI signal including sound to an HD TV. I have looked on Newegg at HDMI video cards, and while there are several pages of them, I do not seem to be able to resolve the sound issue. In looking at the port configuration on the cards, I do not see any provisions for a "sound in" receptacle. Do HDMI video cards automatically process sound? My inclination is to believe they do not. Can someone point me to some PCIE X16 cards that provide an audio signal via the HDMI?