Arcady,
Pls check the contents of the .overview file for the group that is getting this error.  It should be located at News/agent/nnimap/MAIL_SERVER_NAME/MAIL_BOX_NAME/.overview.  Does the line, "Free CDs ..." appear in this file EXACTLY as shown below?

If it does, run (gnus-agent-regenerate-group "GROUP_NAME") to repair the .overview.  This should fix your problem for now.  I'll check in new code tomorrow to improve the error checking.  What we're seeing right now is a symptom.  It may take some time to find the cause.

Kevin

Arcady Genkin wrote:
Simon Josefsson <jas@extundo.com> writes:

  
As I replied to Kevin in private mail, it's the following:

 # ( 1) [PasteMusic.com      ] Free CDs at Paste, Gift Subscriptions for Cheap/New PasteArtist Brad Yoder + Ryan Adams, etc.

and the point is in the third column (right after the `#' character).
      
In the *nntpd* buffer?  That looks really wrong, how did a summary
buffer line end up in the server buffer?  
    

By ``server buffer'' you mean the `` *nntpd*'' buffer?  It looked
alright, as far as I could tell, but I would not know if there were
anything wrong with the actual format.

  
Do you have any summary buffer customizations that may leave data in
the server buffer?
    

Not sure.  I have the following lines in my .gnus; perhaps there is
something wrong...

(add-hook 'gnus-summary-mode-hook
          '(lambda ()
             (local-set-key [(alt delete)] (quote gnus-summary-delete-article))
             (setq gnus-summary-line-format "%U%R%z(%2t) %I%(%[%-20,20n%]%) %s\n
"
                   gnus-summary-same-subject "--\"--"
                   gnus-auto-select-first nil
                   gnus-show-threads t
                   gnus-gather-loose-threads t
                   gnus-thread-hide-subtree t
                   gnus-thread-hide-subjects nil
                   gnus-thread-indent-level 2)))
(add-hook 'gnus-summary-exit-hook 'gnus-dribble-save)

Thanks,