Troubleshooting (displaying images across different machines)

[Jonathan Hayward <christos jonathan hayward gmail com>]

My gtk program is loading images for me on one Linux box (with Gtk 2.6.7), but not another (different distribution w/Gtk 2.6.4).

If I do a "make; make install" on my computer, it gets some user input
and displays graphics (mostly a table of images) in the main window.

On the other computer, everything but the images seems to be working.
It displays the broken image symbol for a spacer png, and doesn't
display the main table at all. (I went through and manually checked
that it was loading the correct files, and checked that there were
files at that location). All the files are png's made with Gimp 2.2.7
(compression turned off, otherwise default options). Images are created
with gtk_image_new_from_file(filename) [displays the broken image icon]
or a two-step gdk_pixbuf_new_from_file(filename, NULL) and
gtk_image_new_from_pixbuf(master_icons[icon_id]) [doesn't display
anything]. 

How should I go about troubleshooting either the other computer or my
program? Does this sound like a problem with my program, the other
computer's Gtk installation, or something else?

(My source at http://haywardfamily.org/jonathan/gtk_tms.tgz , if it
sounds like my program has problems running with a sane distribution)

TIA,
-- 
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