http://bugs.winehq.org/show_bug.cgi?id=15081
--- Comment #10 from spike spikethehobbitmage@excite.com 2008-11-30 15:00:11 --- Disabling Vertex Shader or Pixel Shader fixes this, however: no Vertex Shader causes PWI to crash after entering the game world with some video cards. no Pixel Shader causes the 'Everybody is Naked' bug.