My National ExpressAudio does not sing

Hi All,

I have a system with a NS ExpressAudio Chip. I start it using the
SoundBlaster drivers and specifying the irq, ioport, dma and dma1. The
driver starts and doesn’t return any error. Then I start phplay and open a
MP3 file. Almost immidiately, the plugin (mpegaudio) end unexpected. phMp3
however, starts playing. I see the scrollbar changing but I don’t hear
anything. The Geode driver returns an ‘native’ error (used sloginfo to
determine this), so that driver doesn’t work. Before you might ask… I have
connected a working spreakerset to the system.
Can somebody help me out?