http://bugs.winehq.org/show_bug.cgi?id=24271
--- Comment #14 from Raymond superquad.vortex2@gmail.com 2010-12-14 19:33:28 CST --- if you are using ubuntu 10.10
Try to see whether the underun still occur when using "hw" device instead of "pulse" device by modify wine registry "directhw"=Y
or
specifiy handle_underrun=1 in the pulse plugin
http://git.alsa-project.org/?p=alsa-plugins.git;a=commit;h=c20d516e229620129...