Well Andrew, I have uncovered the culprit.
I know this sounds wacky but we are dealing woth Windows here!

After the Tips and Tricks seminar, I put the Excel and Word links into the Adagio menu.ini file.

I also added the directory and extension into the shortcut parameter.

Word and Excel showed up in the Adagio menu in all the modules except TB.

I undid both these tricks and now everything's fine again.