can't do 'help apropos font'

[Stephen Leake]

In GNU Emacs 21.2.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-03-22 on audreym.gsfc.nasa.gov
configured using `configure  --prefix=/usr'
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: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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

Trying to get info on fonts, I did:

C-h a font

and got the error:

documentation: Symbol's function definition is void: ps-x-face-font-instance


Same error on the Windows pre-built binary.

-- 
-- Stephe