I'm working on a Word 2007 document of over 400 pages. Creating a concordance for this lengthy document is easier then going page by page to index. The issue I am having though is this...once I have created the index, which looks great, and I shut down the programme, I find that I can't reopen it again. I get an error message saying that "Unspecified error: Location Part/word/document.xml/Line 2 Column 682748.

What does that mean and how can I stop the document from becoming corrupt, it is ONLY when I put in the index that this happens, otherwise I can open the file no problem.

Please help.