[CentOS] system-config-securitylevel-tui keeps adding port 88:tcp

When I run this, I have ssh,http checked and have added Kerberos and squid manually
below, but when I save it I still get a port 88:tcp added to the /etc/sysconfig/iptables
file?

What can I use to track what is forcing it to get added? The box is a current
CentOS 5x86 server. I was running apache on it with it set to 88, but it has
since been moved back to 80.

Thanks!
jlc