This happens all the time: I select a group with some unread messages, I
read messages, eventually the header pane shows no new messages but the
group pane claims that there are unread messages.  Now:

  1) if I have selected to show killed (score -9999) messages, I can
     unselect and then re-select "show only new messages", and after
     that I see the "missing" new messages (which do not, in fact, have
     score -9999) and can read them

   2) if I have selected to NOT show killed messages, I cannot make the
      missing messages visible by any means I have tried

The attached pan --debug log is of a session where I start pan, wait for
it to get new messages, and then select a group with unread messages:
header pane is empty.  I do the unselect-reselect thing (see point 1
above) and the messages become visible.

This problem happens on any of the groups I have subscribed, and on all
three news servers I have configured.

I will later try to see if I can get this to happen on a newly created
account: feel free to ping me in a couple of days (now I have to rush to
work).  However, I have not been using pan for more than a month or two.

(Sorry if my references to menu commands etc are unclear; I am using the
Finnish locale and have to back-translate them.)

Dear submitter,

as the package pan has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see http://bugs.debian.org/662149

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@debian.org.

Debian distribution maintenance software
pp.
Alexander Reichle-Schmehl (the ftpmaster behind the curtain)