highlight 'inbox' at the top of screen, rightclick, select 'properties' and then select 'choose' button.

I got into the Choose button and selected RPAiken4. Progam advised me that there were now 10 emails. I restarted TB. Still only 6 Emails under the Inbox group???

Ok, your screenshot is troubling me. I don't know why it appear as unified, but i think it isn't. Try this: - click to account settings pane - locate the RPAiken4 account - highlight, rightclick and drag up above Local Folders - close that screen. does the account now appear with the others?

Thanks. I did those steps. When I go to Account Settings, RPAiken4 is just where I want it - second account upon Inbox. Than I close that tab, then close the TP app and wake it again. I see Inbox containing 6 emails but no RPAiken4 ??? It's still below the Trash folder. Maybe I need to delete the email and add it again?

I think you're having a different problem. Are you using a VPN or a non-Microsoft antivirus? Those sometimes interfere with Thunderbird updating settings. You can verify the problem by changing any setting, exiting thunderbird and restarting and finding the setting unchanged. The key file is named prefs.js and is in the profile. It contains all settings. If you fin the ate does not change, or if you find multiple copies of the prefs.js file, then something is interrupting thunderbird. to see the prefs.js file, click help>troubleshootinginformation, scroll down to 'profile folder' and click 'open folder'. you will be in the profile and view the contents.

I think this picture is what you mean? Windows Defender, Windows 10. Machine not capable of upgrading to Win 11. Thanks

Yes, that indicates the problem. This may work:

1. exit thunderbird,
2. delete all of the prefs files EXCEPT the highest-numbered one.
3. rename that one to prefs.js and restart thunderbird and see if all works properly.

And, there is a nice little free screenshot utility at https://portableapps.com/apps/graphics_pictures/fscportable

I went to C:\Users\spamr\AppData\Roaming\Thunderbird\Profiles\bazomnat.default to see pref.js files. This time I saw pref.js and pref1.js. I made the delete and rename and there was only now pref.js.

Then woke up TB - to the same result.

It seems the problem persists. you deleted the many prefs files, you renamed to prefs.js. You restarted there was prefs and prefs-1 and you deleted/renamed again. That indicates that something is preventing the file from being updated. Also check to see if file is read-only. I do not know the solution, but I do see the symption; the prefs.js is being blocked.

It is not read-only but that gives me a thought. TB has worked well for years until recent. Recently, I hired someone to tweak our 4 computers because they lost the ability to update a password file, KeePass. So he did a lot of stuff and the computers could again see files on the others. I don't know what he did and I could not keep up. Something therein might be limiting access?