http://bugs.winehq.org/show_bug.cgi?id=18900
--- Comment #13 from Alexandre Julliard julliard@winehq.org 2009-06-12 14:56:49 --- Created an attachment (id=21763) --> (http://bugs.winehq.org/attachment.cgi?id=21763) Avoid dups in object wait list
Give this a try.