http://bugs.winehq.org/show_bug.cgi?id=20799
--- Comment #77 from Chris chris.kcat@gmail.com 2010-06-03 00:55:35 --- I'd be interested if someone could test the latest Git/SVN version of OpenAL Soft. I tracked an error from other apps that resulted in odd crashes, to the constant unloading/reloading of PortAudio. So especially if you have that, it may be worth checking out now.
Instead of using the latest Git/SVN version, you can also try adding this to the [general] section of ~/.alsoftrc (create it if it doesn't exist) to disable PortAudio: drivers = pulse,alsa,oss