Error in post-command-hook: (invalid-function w3m-image-alt)

[David Abrahams <dave@xxxxxxxxxxxx>]

This bug report will be sent to the emacs-w3m development team,
 not to your local site managers!!
Please write in simple English, because the emacs-w3m developers
aren't good at English reading. ;-)

Please describe as succinctly as possible:
	- What happened.
	- What you thought should have happened.
	- Precisely what you were doing at the time.

Please also include any Lisp back-traces that you may have.
================================================================
Dear Bug Team!

M-: (require 'w3m)
M-x w3m-search RET boost RET

I get the error message

  Error in post-command-hook: (invalid-function w3m-image-alt)

Unfortunately, setting debug-on-error does nothing to help most of the
time; I don't get a backtrace.

Somehow I managed to come up with this one, once.  I'm not sure what
made that possible

Debugger entered--Lisp error: (invalid-function w3m-image-alt)
  w3m-image-alt(102)
  w3m-print-this-url()
  w3m-previous-anchor(1)
  call-interactively(w3m-previous-anchor nil nil)

This still occurs with emacs -q for me.

================================================================

System Info to help track down your bug:
---------------------------------------
emacs-w3m-version
 => "1.4.336"
emacs-version
 => "GNU Emacs 23.0.91.1 (i386-apple-darwin9.6.0, NS apple-appkit-949.43)\n of 2009-03-05 on black.local"
mule-version
 => "6.0 (HANACHIRUSATO)"
system-type
 => darwin
(featurep 'gtk)
 => nil
w3m-version
 => "w3m/0.5.2"
w3m-type
 => w3m-m17n
w3m-compile-options
 => ("lang=en" "m17n" "color" "ansi-color" "mouse" "menu" "cookie" "ssl" "ssl-verify" "external-uri-loader" "w3mmailer" "nntp" "ipv6" "alarm" "mark")
w3m-language
 => nil
w3m-command-arguments
 => nil
w3m-command-arguments-alist
 => nil
w3m-command-environment
 => nil
w3m-input-coding-system
 => utf-8
w3m-output-coding-system
 => utf-8
w3m-use-mule-ucs
 => nil

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com