I am not able to get audio to play from my computer to an HD TV through my graphics card. I have connected an HDMI cable from the output of the Radeon graphics card to the HD Television. This configuration was successfully used for my last computer with the same cables and Television. When I open up my Playback Device, Realtek High Definition Audio is Enabled however the Realtek HDMI Output/ATI HDMI Audio is "not Plugged in". The XFX R 7770 Video Card in Inserted correctly into the appropriate expansion slot. All Drivers are up to date, to include AMD Catalyst 12.6 Driver for Windows 7 X64, the audio driver, and the Motherboard Driver. My processor is an i7 3770K CPU @3.50Gjavascript:void(0)Hz.