I was thinking of something like this:
http://www.officearticles.com/word/r...osoft_word.htm
If you Google for 'reset Word toolbar' there are plenty of results, but a lot of them talk about renaming a Word 'data' entry in the registry - I can't see that on mine, so I'm not sure if that's helpful or not.
I've also found when I installed WordRMR on a different pc that it comes up with an error if the Microsoft Reader cannot be found...
Here is an MS article about Word COM add-ins:
http://support.microsoft.com/kb/228856
bob