http://bugs.winehq.org/show_bug.cgi?id=20053
--- Comment #50 from Nephyrin zey Nephyrin@nephyrin.net 2010-09-03 20:46:20 CDT --- The original bug, having to do with nvidia, was fixed ages ago - but various black-screen issues exist in source games.
TF2 no longer broken, but some settings + maps (draw cart outline + pl_thundermountain) still are mostly black.
Transparent effects in source engine games seem to be blended with black instead of the world. (invisible spies in TF2 are black outlines) Turning on backbuffer mode fixes this, but seems to kill framerates whenever these transparency effects are on screen.