Running 1.0alpha5 (though I've been having this problem for the past couple of versions), and using mbox for the mailboxes.
After I've read my mail using Apple's Mail.app (or Thunderbird) and take it offline, when I try to open the INBOX (or any mailbox) with pine, I get the following message (in pine):
[Discarding bogus continuation in msg 1: $Forwarded NonJunk]
Quitting and re-running pine does not bring up this message again, and it looks like it's getting confused by the internal mbox message's X-IMAP line:
X-IMAP: 1076598957 0000257269 NotJunk JunkRecorded $NotJunk $Junk Junk
Forwarded
$Forwarded NonJunk
The "$Forwarded NonJunk" part is the only part of that line that is on a new line, and it gets written out like that after I've read mail using an IMAP client, leading me to believe that pine doesn't know how to handle the newline in the X-IMAP line. I don't know if this is a Dovecot, Mail.app, or pine problem, but I never saw this error in UW-IMAP.
Any help would be appreciated. Thanks!
jcn