http://bugs.winehq.org/show_bug.cgi?id=6971
--- Comment #127 from Vitaliy Margolen vitaliy@kievinfo.com 2008-08-20 10:44:49 --- Today's GIT added a workaround: Set [HKCU\Software\Wine\DirectInput] "MouseWarpOverride" to "force" to force mouse warping. It can also be set per application.
Of course the bug is still not fixed.