Has something happened in Windows 8? Since upgrading from 7, my PC can no longer pass 5.1 sound (DD or DTS) out through the SPDIF. I get stereo only. This must be a driver issue as it worked perfectly before but I installed the most up to date drivers I can find. There's tons of stuff about WASAPI and such like but I can't find a way to just send the raw file to my processor. Using the onboard SoundMAX of my Asus p5ws64 pro with Version 18.104.22.16885 of the Analog Devices driver. Any ideas?