http://bugs.winehq.org/show_bug.cgi?id=22557
--- Comment #4 from Dan Kegel dank@kegel.com 2011-03-15 16:31:54 CDT --- Strangely, the workaround seems to have moved since I first tried it; now DisableMRT=1 doesn't help, but UseVsync=0 works around it reliably.