im using a soundcard, i think it is the Theatron DD, very old. Its definitely using the CMI8768+ COntroller by C-Media. So maybe its not exactly the Theatron, but instead the smaller version, you guys will hopefully know what i am talking about.
Anyway, i needed to reinstall my OS and cannot find any suitable driver for this old thing. There is only the offical driver for the controller by C-Media. But it doesnt provide the GUI from 3D which allows me to activate the SPDIF-Out. I dont remember quit good, but this option was something like: Dolby-Loop… or something. Maybe there is even an other way to activate this, but at this moment the SPDIF is dark, normaly there should be this red light comming out.