http://bugs.winehq.org/show_bug.cgi?id=14633
--- Comment #7 from Matteo Modesti mattemod@gmail.com 2008-07-25 18:00:53 --- I can't confirm this bug since I can't even start Morrowind with Pixel Shaders activated. It's also true that I tried it about one month ago, so I'll retry when I'll have some more free time and then let you know.