I just got a videologic sonic fury soundcard with the aim if surround sound. I have one stereo plugged into the front output and one stereo plugged into the rear output. I am using the ATI DVD player with DVD genie and set the audio to 4 channel downmix but just get the same audio signal coming out of both sets of speakers. I have also tried pro-logic and 3 channel downmix and they don't change anything, the sound signal is the same to both sets of speakers. Is this a problem with the ATI DVD player? Any suggestions?