Dovecot not liking .authinfo?

[Jim Crossley]

This probably isn't a gnus problem, but I've used gnus with a lot of
different IMAP servers and I've never had a problem with putting my
credentials in ~/.authinfo.

I'm trying out a dovecot imap server, and gnus simply will not
authenticate to it with what's in ~/.authinfo.  It prompts me every
time!  The perms are correct, and it works with other imap servers.
I've looked at the dovecot.conf but nothing looks strange, and I'm
pretty much using the debian defaults.

Anyone else seen this before?  Any ideas what I might try?  I'm tired
of typing in my password.  :-)

Thanks,
Jim