Document Map in MS Word 2007 going bonkers

There's a problematic section in your Word file that’s causing this.

The part of your document with the most errors in the Document Map, is the one. Extract this to another file. Then copy & paste the remaining contents to a new document and it should be clean. :)

If you have Table of Contents or Table of Figures and you update the entire table, the Document Map MUST BE OPEN when you update to maintain the same document map. If the Document Map button is not clicked and you cannot see the Document map, then when you update a table it will create a new document map and screw it up.

The same thing happens if the Word Application is closed while the Document Map is open. When Word launches the next time, it thinks it is supposed to create a Document Map for any file opened and screws it up. Instead, close the document map BEFORE CLOSING Word. Then when Word opens next time, it doesn't try to create the Document Map. When you click the Document Map box it will use the existing Document Map you expect.

Also do not save a document with a bad document map or it is the new document map.