http://bugs.winehq.org/show_bug.cgi?id=24238
--- Comment #6 from Thomas Spear Speeddymon@gmail.com 2010-09-09 14:47:07 CDT --- WoW (in cataclysm) uses DirectX 11, instead of 9, so it's no surprise that Cataclysm crashes in DX mode. In Wrath, it uses 9, though, so that still seems like a regression. Performance sucks in dx mode but it shouldn't crash.
I will test my install of live with latest git tonight when I get home.