The same symptom reproduces in my environemt: emacs
23.2.1(i386-mingw-nt5.1.2600).

On 4/16/10, dnquark <dnquark@gmail.com> wrote:
>
> Would anyone have any pointers on getting PNG images to display in
> Emacs 23 under Win32?.. I have installed the gnuwin32 set of
> utilities, including libpng and zlib; C:\Program Files\GnuWin32\bin is
> in path. JPG files started working, but not PNGs.  However, PNG
> thumbnails actually display fine (e.g. in dired via C-t C-t). But
> opening them fails (they open as garbage in fundamental mode, and M-x
> image-mode says "invalid image specification").
>



-- 
Thanks & Regards

Denny Zhang