strange scrollbar behaviour

[Chris Moore]

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

I'm running the latest CVS code on Windows XP.  I don't know whether
this happens on X Windowing System builds.

Here's how to reproduce the problem:

* size a window to be 20 lines tall

* switch to a new buffer in that window

* "C-u 30 RET C-u 30 ." (insert 30 blank lines followed by 30 dots)

* use the scrollbar to scroll up and down slowly and notice the line
  of dots jumping up and down seemingly at random, as opposed to
  following the scrollbar's movement.

Chris.


In GNU Emacs 21.3.50.1 (i386-mingw-nt5.1.2600)
 of 2003-10-01 on CHRISLAP
configured using `configure --with-gcc (3.2)'

Important settings:
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  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: ENG
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Major mode: Mail

Minor modes in effect:
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