Joseph, i found what you're looking for. go down to the Dolby portion of your IDT Control Panel and check the button that says "Enable Speaker Virtualization Support." that is the feature that upsamples stereo sound to emulate 5.1 or 7.1 surround sound. on Creative sound cards it's called CMSS 3D. Dolby just has a different name for it, but they're both designed to make two channel sound come out of all your speakers.