png export has crazy colors

[Mark Ivey <zovirl1_list sbcglobal net>]

Hey, I just upgraded from Fedora Core 3 to Ubuntu 5.04 and command-line
export no longer works.  Exporting from the GUI still works fine, but
exporting from the command line (still inside X) gives this error
message (many times) and the exported file has lots of crazy colors
instead of being monochrome.

$ dia -e server_classes.png server_classes.dia
** (dia-python:22455): WARNING **: Can't color_convert in
non-interactive app (w/o color_init())

I found a few debian users with this problem, but no solution other than
use libart.  Any idea how I can get this working without using libart?

-Mark Ivey-

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=275960
http://mail.gnome.org/archives/dia-list/2005-February/msg00052.html
http://mail.gnome.org/archives/dia-list/2005-May/msg00058.html