form selection box screwed

[jidanni@xxxxxxxxxxx]

The follow works fine in w3m but not emacs-w3m.
On http://wiki.debian.org/DebianTaiwan/MiniDebConf2009
in the box
   More Actions: [Raw Text                ]  Do
one sees
  Raw Text
  Print View
  Render as Docbook
  Delete Cache
  ------------------------
  Check Spelling
  Like Pages
  Local Site Map
  ------------------------
  Rename Page
  Delete Page
  ------------------------
  Subscribe User...

OK, select "Subscribe User" and hit RET.

One expects to see
   More Actions: [Subscribe User          ]  Do
but instead one just gets
   More Actions: [------------------------]  Do

The relevant parts of the document are valid HTML.