I have hooked up my PX5 to my PC (yes I realize it's advertised as a console gaming headset) with the optical cable but in the Sounblaster settings it doesn't seem to recognize that a 5.1 or 7.1 system is hooked up. My soundcard is the Sound Blaster X-Fi Xtreme Audio.

I'm thinking maybe my card is just junk and doesn't have all the processing capabilities I thought it did.