I'm running Avast 5.0.396 Free on Vista64 SP2. I have 3 email accounts, 2 IMAP SSL (993), 1 IMAP non-SSL (143). In Thunderbird 3.0.1, the SSL accounts connect correctly but the non-SSL account doesn't. If I disable the email shield, the non-SSL account connects immediately. When I re-enable the shield, it stays connected, checks for new messages etc.
In the mail log, after I start Thunderbird, I see the following:
1/31/2010 3:12:54 PM 000013A0: Cannot establish SSL, SSL_connect error 10054
1/31/2010 3:13:39 PM 00001020: Cannot establish SSL, SSL_connect error 38
I have 2 other XP boxes where everything, including the non-SSL account, works correctly.
Any suggestions, information, etc. gratefully appreciated.