http://bugs.winehq.org/show_bug.cgi?id=10837
--- Comment #1 from Roderick Colenbrander thunderbird2k@gmx.net 2007-12-23 12:49:03 --- If the problems don't appear on nvidia hardware it is a driver bug. Also opengl is not the holy grail on improving ddraw performance in Wine. It depends a lot on in what way the game is using ddraw in the first place. Even when it uses ddraw in a 'opengl-friendly' way you in general need special opengl extensions like GL_ARB_pixel_buffer_object to unlock the real acceleration. In general opengl is worse or equal to gdi.