It should not be that unstable.
Try trashing preferences/deleting caches/deleting the "normal" template (all these can just be moved from where they are in case they prove not to be the problem.
Also, I don't believe Word was every really a "windoze port" as I believe that Word started out as a Mac app and has been continually developed the the same line since that time... (I'm sure others know better than I do on this though)