I have recently upgraded from Expression 2 to 3. It's much better, but I cannot get the Thesaurus to work.
It worked fine before the upgrade. Precise error message 'No thesaurus is available for English (United Kingkdom)'
I am indeed, in the UK. I have set Tools Page Editor Options to first UK and then USA - no joy. In truth I don't mind the US thesaurus, it would certainly beat 'No thesaurus'