vertical scroll recenter bug

[Hojtsy]

In GNU Emacs 21.1.1 (i386-msvc-windows98.1998)
 of 2001-10-22 on buffy
configured using `configure --with-msvc (12.00)'
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: hun
  locale-coding-system: iso-latin-2
  default-enable-multibyte-characters: t

I believe that the vertical scrolling is broken...
In a plain vanilla emacs 21.1.1 (no .emacs file)
I like smooth scrolling:
  M-x set-variable RET scroll-step RET 0 RET
  M-x set-variable RET scroll-conservatively RET 10 RET
Then I visit the emacs manual:
  C-h i DOWN...DOWN RET
Scrolling down slowly:
  DOWN DOWN DOWN...
When the large header text (The Emacs Editor) scrolls out, 
the screen is recentered (BAD!)!
Same results when scrolling in apropos buffer and 
an italic line is scrolled out.
Same results on Windows 2000 platform.
Workaround: Customize lots of faces, and not use 
proportional or italic fonts.
Have I missed something?
Please reply to hojtsy@index.hu

Recent input:
- s t e p <return> 0 <return> M-x s e t - v a r i a 
b l e <return> s c r o l l - c o n <tab> <return> 1 
0 <return> C-h i <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> 
<down> 
<down> <down> <down> <up> <up> <up> <up> <return> <down> 
<down> <down> <down> <down> <down> <down> <down> 
<down> 
<down> <down> <down> <down> <down> <down> <down> 
<down> 
<down> <down> <down> <down> <down> <down> <down> 
<down> 
<down> <down> <down> <down> <down> <down> <down> 
<down> 
<down> <down> <down> <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>

Recent messages:
Making completion list...
Loading view...done
Loading info...
Loading easymenu...done
Loading tool-bar...done
Loading info...done
Composing main Info directory...
Mark set
Composing main Info directory...done
Loading emacsbug...done

Yours
        Sandor Hojtsy