Problems after IP change

[Daniela]

Hi all!

I recently got a new IP on my outside interface, and I replaced the old IP 
with the new one in my IPFW ruleset, and restarted natd.
Now everything was alright until my network clients (on the inside interface) 
started complaining that they can't connect to remote servers. Ping still 
works, but they can't fetch their mail or surf the net. 
It looks like something is wrong with my firewall, but I changed nothing but 
the old address.
Are there other processes that need to be restarted?

Regards,
Daniela