Thank you for your help but I don't think I've explained the problem very
well. I want a student to open this document as if it has never been
checked. I want red lines to appear, but if somebody spell checks it and
ignores the suggestions, that's it. It's checked forever! No matter who
then opens the document, they have to live with all the ignored spelling
mistakes. Red lines don't appear again, even when opened by a different
person on a different machine. Somehow Word 2007 is attaching this checked
information to the document. My students are beginners and don't know about
Recheck buttons, they are just starting to learn about Spell Check.
But to answer your question, no there is no recheck button.