Two of us have been working on a workbook and passing it back and forth
between us for revisions, etc. Neither one of us knowingly protected it.
Now, new e-mail addresses won't hyperlink although we could do so previously.
The INSERT toolbar, where the hyperlink button lives, is all greyed out with
the exception of Header/Footer. On the REVIEW toolbar, the 'protect sheet',
'protect workbook', and 'allow uer to edit range' are all greyed out.
How do I fix this?