http://bugs.winehq.org/show_bug.cgi?id=17639
--- Comment #13 from Henri Verbeet hverbeet@gmail.com 2011-02-06 11:07:56 CST --- (In reply to comment #12)
(In reply to comment #11)
I'm pretty sure this is another instance of a certain nvidia depth invariance bug, although they don't see it that way.
Is this a hardware, software or driver related bug? With my 9800gt i've the same problems.
I'm not sure if it's a hardware or driver issue, but nvidia's response was essentially that it's an optimization. This affects nv50 and newer cards, which includes 9800GT. Bug 24630 and the last couple of comments in bug 6351 are the same problem, where it's interesting to note that comment 84 from bug 6351 claims this happened in the Windows D3D driver at some point as well, but was fixed there.