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,
>  
>