Bob LeVitus writes, "I've encountered the Word 5 styles bug many times over the past few months, working on book chapters (Dr. Macintosh, Second Edition and The Dr. Macintosh Guide to the On-line Universe). I discovered another work-around, one that's easier and faster than the RTF method you mention, as long as you have at least one other document that uses the same set of styles as the document displaying the bug. In my case, that wasn't a problem. To fix your document, just import all the styles from a similar document. So, for example, if I opened Chapter 6 and found that the fonts had changed, I open the Define Styles dialog box, then use the Open command to open a different chapter, one with the proper font/styles. That's all it takes. Chapter 6 is now right as rain. Works every time. (But I hope Microsoft fixes it soon!)"
Bob LeVitus -- email@example.com