Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

1. Starting Emacs
2. 'M-x Gnus' to start Gnus
3. I.E. I would to read de.comp.editoren I press <SPACE>, if the Cursor
is in Group-Summary over this Group
4. At first, I see the failure in Subject, so it has 'German Umlaut',
later in Article-Summary too

The failure only is shown, so a 'German Umlaut' is together used with
'mö' also 'wö', for this Example by the 'm' also the 'w' the right edge
of the Letters (m + w) shown 'cutted' - If I click one of the Letters
with Mouse, so the Cursor is on it, the look is OK, if I click another
one, the failure will return.

So it looks like, the 'German Umlaut' over-paint the 'm' or the 'w' by
edge.

I attached a Test-Case and the result of 'M-x describe-char RET' by
using the 'm' with 'ö', 'm' with 'o', 'w' with 'ö', 'w' with 'o' the 'ö'
and the 'o'.
Also I send a Text-file with a small Text including the Letters making
the failure also them without failure.

For looking, how its shown by me, look at followed Links so you can see
this too...

www.hobbyecke-pc.de/images/screensh1.png
www.hobbyecke-pc.de/images/screensh2.png

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
g:/Emacs-22.1/etc/DEBUG for instructions.


In GNU Emacs 22.1.1 (i386-mingw-nt5.1.2600)
 of 2007-06-02 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/gnuwin32/include'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: DEU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  recentf-mode: t
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> M-x g n u s <return> <help-echo> <help-echo> 
y M-x r e p o r t - e m <tab> <return>

Recent messages:
Loading gnus-cache...done
Loading gnus-sum...done
Loading timezone...done
No new newsgroups
Checking new news...
Opening nndoc server on gnus-help...done
Opening nnml server...done
Checking new news...done
Loading gnus-topic...done
Loading emacsbug...done

With friendly Greetings and TIA
Joachim Reiter