(frame-width) is not accurate

["Davin Pearson" <davin.pearson@gmail.com>]

To: bug-gnu-emacs@gnu.org
Subject:
--text follows this line--
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In GNU Emacs 21.3.1 (i386-mingw-nt5.1.2600)
 of 2004-03-11 on NYAUMO
configured using `configure --with-gcc (3.2)'
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: ENZ
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

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

When I execute the function (frame-width) it returns the value 140 but
but by manually counting the maximum column I get the value 122.  Why
doesn't (frame-width) return the correct value?  I am using Windows
XP.  Note that I have executed the following commands in my ~/.emacs
file:

(progn
   (set-default-font "-misc-fixed-medium-r-normal--10-*-*-*-c-60-
iso8859-1")
   (set-frame-size     (caadr (current-frame-configuration)) 140 43)
)


Recent input:
j a s d h f k j s d h f k j a h s d k f j h a s d k
j f h a s k d j f h k j a s d h f k j s d a h f f f
f f f g <help-echo> <down-mouse-1> <mouse-movement>
<mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-movement> <mouse-movement>
<mouse-movement> <mouse-1> C-d m y <tab> f o n <tab>
<return> M-x r e p o r t - e m <tab> <return>

Recent messages:
Loading d:/home/mylisp/mystart.el (source)...done
For information about the GNU Project and its goals, type C-h C-p.
140
call-interactively: Quit
140
Loading ebuff-menu...done
<<< Press Return to bury the buffer list >>>

Mark set
Loading emacsbug...done