Image scroll issue

[Leo]

Hi all,

For image taller than window height, scrolling becomes difficult
i.e. the whole image behaves like one line of text and almost
impossible to scroll halfway up.

For example, go to this page:
http://tango.freedesktop.org/Tango_Icon_Theme_Guidelines in emacs-w3m
and toggle image with key 'T' and try to see the bottom row of the
palette. It takes me countless tries in a screen resolution of
1280x800.

In other scenario like an email with very tall in-line image, it is
also a problem trying to see the whole image by scrolling.

-- 
Leo <sdl.web AT gmail.com>                         (GPG Key: 9283AA3F)