http://bugs.winehq.org/show_bug.cgi?id=11091
--- Comment #11 from Vitaliy Margolen vitaliy@kievinfo.com 2008-06-10 07:52:30 --- Steam does use sound for whatever reason. If your hardware & drivers does not support hardware mixing this indeed results in "disabled" sound while Steam is running. Are you sure you exiting Steam? If not - this bug is invalid.