Excel Integrated Reporting v27 - Add Company Not Working

Since upgrading to v27, I cannot add companies in the new 'Sage 50 Accounts' excel integrated reporting toolbar in Excel (above).

I click on Add Company, but nothing happens.

I also tried adding the company on the old  'Sage' toolbar but it won't recognise the setup.dta file for v27 companies.

I have reinstalled v27 without any joy.

Please help.  Thanks.