Audio Error going from Netflix app to live TV

[stombie18]

I keep getting an error when I switch from Netflix back to live tv that says my audio is not supported and that I need to restart media center or the computer. When I restart WMC live tv works fine. It only gives me an error when I got from Netflix to live tv. Anyone had this happen to them before?

[Scallica]

Please provide more information about your hardware, driver versions, and wiring setup.

[stombie18]

I'm running Windows 7 64bit. Audio is going out through HDMI port of a Nvidia GTX 650 to a Pioneer VSX-1019AH-1. I haven't installed any 3rd party drivers for audio. All other drivers are up to date. Am I missing anything?