I'm vainly trying to get chuck to work with my Via Epia CN10000EG in 5.1 surround sound. It's running XP SP2. I'm able to play 6 channel audio files using mplayer.

When I probe for audio devices I don't get any 6 channel capable devices:
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[chuck]: found 4 device(s) ...
[chuck]: ------( chuck -- dac1 )---------------
[chuck]: device name = "Primary Sound Driver"
[chuck]: probe [success] ...
[chuck]: # output channels = 2
[chuck]: # input channels  = 0
[chuck]: # duplex Channels = 0
[chuck]: default device = YES
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]: supported sample rates:
[chuck]:   8000 Hz
[chuck]:   96000 Hz
[chuck]:
[chuck]: ------( chuck -- dac2 )---------------
[chuck]: device name = "Vinyl AC'97 Audio (WAVE)"
[chuck]: probe [success] ...
[chuck]: # output channels = 2
[chuck]: # input channels  = 2
[chuck]: # duplex Channels = 2
[chuck]: default device = NO
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]: supported sample rates:
[chuck]:   11025 Hz
[chuck]:   22050 Hz
[chuck]:   44100 Hz
[chuck]:
[chuck]: ------( chuck -- dac3 )---------------
[chuck]: device name = "Primary Sound Capture Driver"
[chuck]: probe [success] ...
[chuck]: # output channels = 0
[chuck]: # input channels  = 2
[chuck]: # duplex Channels = 0
[chuck]: default device = YES
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]: supported sample rates:
[chuck]:   11025 Hz
[chuck]:   22050 Hz
[chuck]:   44100 Hz
[chuck]:
[chuck]: ------( chuck -- dac4 )---------------
[chuck]: device name = "Vinyl AC'97 Audio (WAVE)"
[chuck]: probe [success] ...
[chuck]: # output channels = 2
[chuck]: # input channels  = 2
[chuck]: # duplex Channels = 2
[chuck]: default device = NO
[chuck]: natively supported data formats:
[chuck]:    8-bit int
[chuck]:   16-bit int
[chuck]: supported sample rates:
[chuck]:   11025 Hz
[chuck]:   22050 Hz
[chuck]:   44100 Hz
[chuck]:
[chuck](via RtMidi): RtMidiIn::initialize: no MIDI input devices currently available.
[chuck]: ------( chuck -- 0 MIDI inputs )------
[chuck]:
[chuck]: ------( chuck -- 1 MIDI outputs )-----
[chuck]:     [0] : "Microsoft GS Wavetable SW Synth"
[chuck]:
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Launching chuck doesn't fare much better. I tried using each different dac, in turn, but same results every time.

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$ chuck --dac0 -o6 chucksrc/inc.ck
[chuck]: (via rtaudio): no devices found for given stream parameters:
... RtApiDs: requested channels (6) > than supported (2) by device (Primary Sound Driver).
... RtApiDs: requested channels (6) > than supported (2) by device (Vinyl AC'97 Audio (WAVE)).
... RtApiDs: requested channels (6) > than supported (0) by device (Primary Sound Capture Driver).
... RtApiDs: requested channels (6) > than supported (2) by device (Vinyl AC'97 Audio (WAVE)).

[chuck]: cannot initialize audio device (try using --silent/-s)
===========================================================

Does anyone have any insight?
Thanks,
James