I am attempting to play audio through my nVidia GTS 250 graphics card on my tv. The TV is connected via HDMI cable using a DVI to HDMI adapter. I used the S/PDIF cable included with the computer to connect the graphics card to my motherboard as per the instructions in this link: I cant post the link because of the post limit, if it seems necessary ask and I'll message it to you. I know that the grounding and SPDIF cables are connected to the correct pins. That is all I've been able to find to do, but I can't get the audio to play. The Realtek HD audio manager says that digital audio is enabled. I have two identical video cards connected with SLI, and currently have the SPDIF cable connected to the card that is actually connected to the tv. Would that make a difference? Any suggestions?