In case it is any help (maybe I'm running a version that has issues)....
It's a Slackware 10.1 installation
root@m700l:~# iptables -V
iptables v1.2.11
root@m700l:~# uname -a
Linux m700l 2.4.29 #6 Thu Jan 20 16:30:37 PST 2005 i686 unknown unknown
GNU/Linux
root@m700l:~# date
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