http://bugs.winehq.org/show_bug.cgi?id=23616
--- Comment #1 from Austin English austinenglish@gmail.com 2010-07-11 17:39:53 --- Try updating to 1.2-rc7, recent ubuntu packages had a problem with sound.
You might try setting sound to OSS, I needed that for 1.2-rc6, but alsa's fine in rc7.