http://bugs.winehq.org/show_bug.cgi?id=27264
--- Comment #7 from Stefan Dösinger stefandoesinger@gmx.at 2011-05-25 03:59:23 CDT --- a1519e62f47f2dfa54ca526ee718fe8a936593f2 is the patch that was supposed to fix the regressions. You could try to play with a smaller or bigger zbias_factor. Also take a look at the ZBIAS values the app sets.