Tim: >> You really need to be sure that Thunderbird has fully quit running >> before backing up its database. Bill: > Understood. That's how I did it. Just triple-checking: Exiting the program in the usual may not be enough. That may just close down your user-interface. It could be still running in the background, keeping an eye on your calendar, etc. I'm not sure about Thunderbird, but many mail programs are often like that. You end up using some command like "evolution --quit" and/or "killall evolution" (a few times), to get evolution to actually quit. -- uname -rsvp Linux 3.10.0-1062.1.2.el7.x86_64 #1 SMP Mon Sep 30 14:19:46 UTC 2019 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx