Emacs21 display bug in text mode: "flashing window"

[Dast]

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

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing
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In GNU Emacs 21.1.1 (i686-pc-linux-gnu, X toolkit)
 of 2001-10-22 on dracula
configured using `configure  --prefix=/home/dast/newemacs21'
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

System:
Debian 2.2r3 (potato)
Linux dracula 2.2.19 #1 Wed Aug 29 15:42:34 CDT 2001 i686 unknown

ldd emacs:
        libXaw.so.6 => /usr/X11R6/lib/libXaw.so.6 (0x40014000)
        libXmu.so.6 => /usr/X11R6/lib/libXmu.so.6 (0x4004d000)
        libXt.so.6 => /usr/X11R6/lib/libXt.so.6 (0x4005f000)
        libSM.so.6 => /usr/X11R6/lib/libSM.so.6 (0x400a7000)
        libICE.so.6 => /usr/X11R6/lib/libICE.so.6 (0x400b0000)
        libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x400c6000)
        libtiff.so.3 => /usr/lib/libtiff.so.3 (0x400d6000)
        libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x40119000)
        libpng.so.2 => /usr/lib/libpng.so.2 (0x40139000)
        libz.so.1 => /usr/lib/libz.so.1 (0x40160000)
        libm.so.6 => /lib/libm.so.6 (0x4016f000)
        libXpm.so.4 => /usr/X11R6/lib/libXpm.so.4 (0x4018c000)
        libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x4019a000)
        libncurses.so.5 => /lib/libncurses.so.5 (0x4023c000)
        libc.so.6 => /lib/libc.so.6 (0x4027a000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)

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

Start emacs by:
emacs -nw --no-init

Then do the following:
Split the window vertically: C-x 2 (split-window-vertically)
Split the window horizontally: C-x 3 (split-window-horizontally)
Enlarge the window: C-x ^ (enlarge-window)

The window setup should look something like:

+--------+--------+
|c       |        |
|   1    |   2    |
+--------+--------+
|                 |
|        3        |
+-----------------+

c indicates the position of the cursor, numbers indicate which window
I am referring to.

After these three actions, window 2 "flashes" with every key I type.
Usually it alternates between showing the contents of window 2 missing
the mode line and showing the mode line of window2 but not the
contents.  Sometimes (although I couldn't reproduce it, window 2
disappears all together (no content and no mode line).  I realize this
probably isn't very clear, so I set up a page of screenshots and
description of keystroke sequences at:
http://www2.msstate.edu/~cfy1/emacs/bug/

I also get this behavior with GNU Emacs 21.0.105.2
(i386-debian-linux-gnu, X toolkit) on the same system, and with GNU
Emacs 21.0.104.1 (sparc-sun-solaris2.6, X toolkit) on our school's sun
box.

This behavior only happens in text mode.  I have verified it on my
potato box in Eterm, in a stock xterm, and on the console
(TERM=linux).

-- 
--Dast
"Attention, Seekers everywhere!  I was right!  Everything I knew *was* wrong!"