A family of Microsoft word processing software products for creating web, email, and print documents.
Thank you, Bob. I spent all afternoon on the phone with a very helpful MS rep; she was unable to resolve the issue (she even had me reinstall Word), but finally determined after much experimentation that the file in question is corrupt. (I'm a book editor and keep my Word program up to date; the file was pasted from an ancient version of Word that the author continues to use. Bummer, but at least the problem was finally isolated.) Thank you for your reply.