A family of Microsoft word processing software products for creating web, email, and print documents.
What you describe suggests section-level corruption as a possible cause. You don't have to delete footnotes, but you should try copying the document, section by section, making sure to omit each section break and also the final paragraph mark of the document (the latter mark contains section formatting for the last section of a document, or for the only section in a document without section breaks). For more on this, see http://word.mvps.org/faqs/apperrors/corruptdoc.htm.