that the inbound server is already setup.

Hi! I have been using Thunderbird on 2 laptops for years. Both these laptops allowed me to setup 2 accounts : user1@mydomain.com user2@mydomain.com both are hosted by ionos.com. The server setup is imap.ionos.com When I went to install Thunderbird on my new Windows 11 laptop, it is too cool for school. Tries to be too cute. I got user1@mydomain.com set up and working, but it won't let me setup user2. If I go through several unnatural acts to get past the "helpfulness", it complains that the inbound server is already setup. I can't help, but conclude there is a bug or two in the latest account setup. Any assistance getting around it would be greatly appreciated. If there is a file I can export from the laptops that work and import on the new laptop, that would be nice. Thanks much! David P.S. I donated.