I'm trying to send my sound with my audio through the HDMI cable to a LCD vizio tv. The powercolor ATI HD2400 wi8ll allow this with the proper DVI/HDMI adapther wich i have. My problem is my motherboard Asus (K8N-E Deluxe) W/ onboard realtek audio on windows xp does not see the HDMI audi out of the video board so im not able to select it in the control panel. I have the same setup on another pc newer MB W/vista and that allowes me to switch. Does anyone see a possible solution ? Would buying a pci sound card solve this problem?