http://bugs.winehq.org/show_bug.cgi?id=10010
--- Comment #33 from Roderick Colenbrander thunderbird2k@gmx.net 2008-02-17 08:52:38 --- Yesterday I submitted a patch which adds support for separate alpha blending. If you guys are interested grab it from wine-patches and test it in this game. It requires GL_EXT_blend_equation_separate and GL_EXT_blend_func_separate.