Ok, I'm not sure where to put this since I don't know if it's hardware or software related, I have a feeling it's software related though. I have a sound Blaster Audigy 2 Platinum and a set of 6.1 surround sound speakers. Now when I ran my calibrator DVD to check to see if all my channels were working right, I became alarmed to notice that my CMSS was turned on (one of those surround sound emulator functions). So, I turned it off to let only true surround sound tracks work on the appropriate channels. When I did this, all surround on the rear channels and sub ceased to work. Using Creative's channel ID tool, I did verify that the creative application could output on each channel indiviually, but what am I missing to make surround work in Media Portal? My Audio codec is currently set for AC3Filter and my Audio renderer is set to SB Audigy 2 Audio [DF00]. Any help that can be given to get true surround working is immensly appreciated!!!