incorrect redraw

[Raphaël Berbain]

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In GNU Emacs 21.1.1 (i686-pc-linux-gnu, X toolkit)
 of 2001-10-29 on jesus
configured using `configure  --prefix=/home/raph/local/emacs-21.1 
--with-x-toolkit=athena --with-xpm --with-jpeg --with-tiff --with-gif 
--with-png --without-toolkit-scroll-bars'
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: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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

appres Emacs:
Emacs.internalBorder: 15

When internal border value is more or equal to 15, I can see problems
in Emacs window redraw: the mode-line isn't drawn, and the bottom part
of the toolbar isn't either.

launch Emacs:
emacs -geometry 30x20 -q --no-site-file
<screenshot: emacs-4-startup.png>
launch any app whose window covers emacs' one.  Exit this app to
re-expose the Emacs window. the redisplay problem then appears.
<screenshot: emacs-4-expose.png>
hit C-l
<screenshot: emacs-4-recenter.png>

screenshots at http://raphael.berbain.free.fr/emacs

Recent input:
M-x r e p o r <tab> <return>

Recent messages:
Checking new news...
Opening nndraft server...

Opening nndoc server on gnus-help...

Checking new news...done
Loading gnus-topic...done

Args out of range: 112511, 112511
Loading emacsbug...done

-- 
Raphaël