I just bought a set of Logitech Z-906s (still rocking the 5.1 setup) and connected to my Sound Blaster Zx via optical cable. Found out that to get 5.1 audio you have to have a Dolby or DTS source, which most PC games apparently do not support. So, is it possible to get 5.1 PCM output via optical on this setup? I've heard of something like Dolby Digital Live or DTS Connect, which I believe is supposed to convert 5.1 PCM into 5.1 Dolby or DTS (or am I wrong)? I'm not sure if my sound card is capable of this. I'm able to turn on some sort of stereo mixing to digital through the Creative drivers, but that only provides a stereo output to the speakers. I can always go back to analog, but I was hoping to do it all through the digital output if possible. Thoughts? Corrections? Suggestions? Any help would be appreciated.