http://bugs.winehq.org/show_bug.cgi?id=15868
--- Comment #87 from Henri Verbeet hverbeet@gmail.com 2011-09-11 08:28:51 CDT --- (In reply to comment #86)
I'd like to reflect on comment #76. That visual glitch is still present in Wine-1.3.28, but only when anti-aliasing is turned off. Now Wine supports multisampling, and I noticed that water appears correctly when anti-aliasing is enabled in the game.
If that's the case, setting "AlwaysOffscreen" to "enabled" may also work as a workaround.