After upgraded from Vista to Windows 7 RC, there is no HDMI audio out from my HDTV any longer. It can display video, but just no sound. In Playback Devices, it show HDMI Output as "Not Plugged In". I got Sony Vaio Realtek audio card and Nvidia video card. My audio
driver is up-to-date with Win 7, but why there is no sound??? Any suggestion?
thanks