Hi, I have been using TB for many years, when suddenly 4 days ago ( Feb. 1st.) it started as a brand new install, asking to set up a new account, I got no previous warnings or had other issues. Since then I have done several attempts to get it connected with my profile, among others: - Everything from this article https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data - Importing the Profile from Functions > Import > "Import from another Thunderbird installation" - Reinstalling TB ( without removing the profile) All of it with no succes, there is no accounts, and no mails, only some empty local folders so I'm running out of good ideas, and I really hope you can help! BTW, somehow the addressbook has content, as the only thing. Thanks Best regards Preben