http://bugs.winehq.org/show_bug.cgi?id=14096
--- Comment #5 from Lauri Niskanen ape@ape3000.com 2009-07-04 04:30:21 --- (In reply to comment #4)
On my box, Motion Blur doesn't work even with PC3 shaders activated in the game settings. I'm using Wine 1.1.24 on Gentoo.
Please try with Wine 1.1.25.