http://bugs.winehq.org/show_bug.cgi?id=24746
--- Comment #4 from Javier Kohen jkohen@users.sourceforge.net 2011-01-16 02:11:18 CST --- (In reply to comment #3)
I have a possible solution. I used to run Steam games fine with "OffscreenRenderingMode" set to "fbo"; the only problem was that anti-aliasing did not work, even with the string "Multisampling" set to "enabled" in regedit. I read up and found out that anti-aliasing causes a black screen with FBO...
So, try using regedit to set the string value "Multisampling" to "disabled" (in the same Direct3D layer where the "OffscreenRenderingMode" value is set).
That sounds like a workaround, not a solution. I think I'll pass, Wine should be smart enough to do that for the user if what you suggest is how it should work.