http://bugs.winehq.org/show_bug.cgi?id=10557
--- Comment #5 from Stefan Dösinger stefandoesinger@gmx.at 2007-11-25 06:55:48 --- Yes, this was the forum post I meant.
Changing the link order of the shaders fixes the issue for me(gf7300), I'm considering sending a patch just to get rid of reports that GLSL is broken.