Thank you for the bug report, but could you please also submit a report via
the command M-x report-xemacs-bug because it will give us much more
information about your environment.
BTW, the recently releases 21.4.16 contains a fix for some malformed gif
crashes. Could you upgrade to that version and try as well?
Thanks,
Malcolm
--
Malcolm Purvis <malcolmp(a)xemacs.org>