ECS H61H2-M2 - HDMI Sound Just Stopped Working

I have an ECS H61H2-M2, and with the drivers, there was VIA HD ADeck, which I think is for the hdmi audio from the onboard hdmi port. It's a brand new build. Yesterday, I ran an hdmi cable to my 32 inch samsung flatscreen, fired up windows, and there were no problems at all with sound. Today, I did the same thing to watch a phillies game through mlb.tv, and there is no sound through the hdmi port. The video is there, but no sound. The sound from the onboard audio jacks work fine, but again no sound from the hdmi through the tv. I've tried the audio settings, and nothing.

Any help would be appreciated. I don't think it's a hardware issue because everything else works, but I thought maybe another ECS user had the same problem.