http://openoffice.org/bugzilla/show_bug.cgi?id=113554#add_comment (This is just a comment, but I couldn't attach it the normal way due to some quirk of the way Bugzilla imported old issues, see Bug 117094 ) Yes, it still crashes in 3.3 on my Mac (OOO333m20, build 9567), but not consistently: crashed the first time, worked fine for the next half dozen or so tests, then crashed again. Which basically supports my earlier guess that it is a thread synchronization issue. Sometimes those threads will return their results in the right order anyways, even without the proper checks, and sometimes they won't.