I have a EVGA nVida 680i motherboard with a GeForce 230GT graphics card. I am trying to get audio to come through the HDMI port to the TV. I have plugged the internal jumper cable from the SPDIF pins to the graphics card, installed the Realtek drivers, and the latest audio drivers from EVGA, and the latest GeForce drivers. However, I can find no way to get the sound working. Anyone have any tips?