Gack ... boring old nnimap and gmail problem again

[Harry Putnam <reader@newsguy.com>]

I'm really stuck on this ... I've had nnimap access of gmail account
working for a good while.

My gmail account had some incident like apparently gmail itself was
hacked in some way.

At any rate I was told I had to make a new password.  I did so, and
can login from browser with no problems.  

I put the new password in the corresponding field of ~/authinfo but
cannot access gmail imap groups now, from gnus.

BTW: using latest gnus as of today. (latest emacs-24 as of yesterday)

First, again, know that I CAN login to gmail with no problems from a
browser.  And do so by using the exact same uid and passwd shown below
{passwd elided}.  And know further that this all worked until the
event mentioned above and a password change with .authinfo updated
accordingly.

I didn't change my nnimap settings for gmail but I did change authinfo
to update the passwd.

From .gnus:

,----
|  (setq gnus-secondary-select-methods
|      '((nnml ""))) 
| 
|  (add-to-list 'gnus-secondary-select-methods '(nnimap "hputnam3"
|                                   (nnimap-address "imap.gmail.com")))
`----

-------        ---------       ---=---       ---------      -------- 

From ~/.authinfo (passwd elided):

,----
| machine imap.gmail.com login hputnam3@gmail.com password [...] force yes
`----

  [NOTE: This one worked before the password change mentioned above:
,----
|  machine imap.gmail.com login hputnam3@gmail.com password [...] port imap
`----

now neither of the syntax above work]

-------        ---------       ---=---       ---------      -------- 

From: messages buffer:

,----
| Opening connection to imap.gmail.com via tls...
| Opening TLS connection to `imap.gmail.com'...
| Opening TLS connection with `gnutls-cli --insecure -p 993 imap.gmail.com'...done
| Opening TLS connection to `imap.gmail.com'...done
| Opening nnimap server on hputnam3...failed: NO (AUTHENTICATIONFAILED) Invalid credentials (Failure)
`----

I don't remember seeing this line;

,----
| Opening TLS connection with `gnutls-cli --insecure -p 993  imap.gmail.com'...done
`----

when the connection worked but maybe just never noticed it.