mplayer and S3 Sonicvibes sound card

[mpsii]

I have installed mplayer and alsa with the alsa oss layer installed as well. Following the desktop guide.

When I run mplayer I get video, but no audio.
When I run gmplayer I get 3 seconds of sound and then a Signal 11 interrupt. Also, never any video.

Any ideas? Yes, I have looked through the forums. I cannot find anything on Signal 11 or sonicvibes. According to the stats project, I am one of 3 people out there with a sonicvibes card...

Thanks in advance for any help!
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Michael