http://bugs.winehq.org/show_bug.cgi?id=20177
--- Comment #25 from Chris chris.kcat@gmail.com 2009-11-06 00:56:56 --- Finally got the UT3 demo installed, and after applying the XP64/2K3 patch and figuring out you needed to run it from the base UT3 directory, as opposed to the UT3\Binaries directory, it works. Full sound and all.
I did hit an issue where it would crash OpenAL Soft when setting a NULL effect on an auxiliary effect slot, but I got this fixed in the Git/SVN version. A proper release with the fix (OpenAL Soft 1.10) should be out in a couple days.