Hi guys! Is there a way to somehow upmix stereo (e.g. YouTube or Spotify) audio to 5.1 with this unlocked driver via S/PDIF optical connection? I've installed the driver version 2.73 for my ALC898 chip (ASRock z77 Extreme-4 motherboard) and it works fine. On my 5.1 speaker setup's (I have a Logitech z906) control console there is a LED ("decode") which indicates if the outputted stream is DTS/DD or not. This LED lighting (when playing audio), so the stream is DTS/DD and I hear a little difference, the sound is more detailed, I think. Anyway, the problem is if I play a YT video or something similar, only the front speakers (and the subwoofer) play any sound (so it's basicly works as a 2.1 system). However the speaker system has an in-built capability to upmix stereo (to 4.1 or 5.1) this doesn't work if the stream is DTS/DD. I use The KMPlayer to play media files, whitch has a function to output 5.1 audio even if the source is 2.0 (like a typical .mp3 file) and it works well. In the driver, there is an option called "Dolby Home Theatre" whitch should do the trick, but it doesn't. Any suggestion?