It seems to make no difference whether I choose a new term or
all, or whether I choose all folders or an individual one.
Just looking at it again, the Glossary wizard appears to have
done it's stuff, so I suspect there's some "comedy capers" going on
with the Wizard not ending the process cleanly and leaving the
dialog box open.
If no one else is seeing this problem, that could mean
there's something wrong with my install.... Fortunately I can live
without updating the Glossary (again) for this particular project,
so once it's finished I'll look at re-installing RH.
Cheers.