TBird will not open. Msg: an error occurred with the pop3 mail server

Will it start in Troubleshoot mode? If it starts, make sure your POP settings match your provider's POP settings.

Thank you. Same message in troubleshoot mode. I am still getting mail, I assume from IMAP server. In or out of t.shoot mode, still same messsage. John

Thank you. Same message in troubleshoot mode. I am still getting mail, I assume from IMAP server. In or out of t.shoot mode, still same messsage. John

I'm not sure what you mean by "TBird will not open" - ?

Thank you again for your time and trouble. When I open Bird, I get a boxed msg that says (see below), and freezes the screen. Despite this mysterious msg, I do seem to continue to receive mail, and (testing now...)yes, I can still send mail. I just keep having to say OK to this error msg. Not a functional breakdown, just wondering why, in case something more major shows up. Thanks again John

Thank you again for your time and trouble. When I open Bird, I get a boxed msg that says (see below), and freezes the screen. Despite this mysterious msg, I do seem to continue to receive mail, and (testing now...)yes, I can still send mail. I just keep having to say OK to this error msg. Not a functional breakdown, just wondering why, in case something more major shows up. Thanks again John

Do you in fact have a POP account as well as IMAP?

yes I guess I do...

yes I guess I do...

Delete that POP account and recreate it?