There's been some weird sound related bugs in a number of projects i've seen lately. My game Coliseum also had a few people with sound related crashes too. When I turned off the music, all the people with problems ran fine.
I ended up having to write my own basic custom-contained ActiveX sound playing file (device-independent) to get around the problem and make sure no one else had trouble.
Arrgh. Windows sure is fun sometimes.
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