Originally Posted by zwooky
I'm not sure if I can help here, but I have clean installation of Vista and
found little difference in my Sound window than your one. I will try to explain
what I mean.
Go to Control Panel/Hardware and Sound/ Sound then click Manage Audio Devices.
In this window you should find three items:
-Digital Output Device (HDMI)
-Digital Output Device (SPDIF Out)
From your attached image, looks like, you don't have Digital Output Device (HDMI),
do you?. But if you got it, right click it and set it as the Dafault, also check
it and click on Properties, "Enable" the device usage first, then under Levels tab,
check if the volume level is all the way up.
Also, in the Device Manager,I found two devices....High Definition Audio Device
and in my case SigmaTel High Definition Audio CODEC. This first one is just for
HDMI audio. By the way, audio drivers
are still the same that OEM provided.
You already try set the SPDIF interface to Default, but click Supported Format
tab and try to check in the Microsoft WMA Audio, and at the same time deselect
the other ones. Maybe, this will help.