This is not the first time that it happened. Nearly at each major office update, Endnote is broken and you must buy the new version… with nearly no new feature except that it worked again. And what is the most funny, is that generally it takes 1 or 2 months before to have the new working version whereas the beta for office showing the problem was available to developpers long before.
This is nearly like planned obsolescence… Thomson should take care of class action in USA (in France it does no work still) !