I have the same problem, too.
Newest drivers, but no center Speaker!
First, i do not have rear speakers, too in winamp for example. But I found something in the audio-options of winamp, and it does work!
klick here
Back to my problem, i have tried the change in the registry, but this does not work.
Look here please!
So does anyone have another idea?
Greetings,
Basti
(from Germany)[/url]