Thanks for your help. The answer lies in the second part of your instructions. I needed to reinstall XPS Document Writer. This was removed by a Windows 11 update. I would never have guesed. However, the Intuit instructions for reinstalling this are only good for Windows 10! You all need to amend the instructions as I had to really hunt around for the correct sequence of actions to install and inititiate the program. Once done, we were able to email PDFs again.
