http://bugs.winehq.org/show_bug.cgi?id=12444
--- Comment #6 from Lei Zhang thestig@google.com 2008-04-29 16:06:24 --- (In reply to comment #5)
You were right, I had about 8 old instances of winemenubuilder running without noticing, must have happened during installation of another game several days ago. Once I killed those, the problem went away.
FYI, that's probably bug 12707.