Exit word problem

I update Mendeley to 1.10.3 automatically from 1.10.0. After the updating, every time when I exit word (2011 for Mac OS), a dialog pop up say 'Whether or not save change on Mendeley.dot?' I reinstall the Mendeley and even the MS Office. This dialog still pop up. How to cope with this problem? My email: cesgf@mail.sysu.edu.cn