[vdr] Bug in selecting audio channel over digital out

Today I noticed that when I select left or right audio channel, this only takes effect on the analog audio out, not the digital out of my Nexus card. From my Nexus, I have video (yellow), audio right (red), and audio left (white) run to my television. I have the digital audio out (black) run to my stereo system in another room. When I switch to a radio station with different broadcasts on the left and right channels, I can select either left or right on my remote. The audio plays fine on the TV, but I still have the garbled mix of both channels on the digital output. I don't know if this is a bug in vdr or the Nexus drivers or firmware. Nexus 2.3, 1ghz Athlon XP, 1gb RAM, VDRLive CD installed to harddrive