#16 Can't browse web on port 80

[Anonymous]

I have this linux box setup as the default gateway for
my "LAN" and I seem to have no problems except for the
fact that it doesn't want to load anything on port 80.
It'll say "Connection Established" and that it's waiting for
the reply. Even the computers behind the Slackware box
seem to have the same problem. I can load pages on
other ports, and IRC and other simple net protocols work
great. I'll include some things I think may be useful.

root@nat:~# wget www.msn.com
--19:54:29-- http://www.msn.com/
=> `index.html'
Resolving www.msn.com... done.
Connecting to www.msn.com[207.68.173.254]:80...
connected.
HTTP request sent, awaiting response...
root@nat:~# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere
tcp dpt:http
ACCEPT tcp -- anywhere anywhere
tcp dpt:http
root@nat:~# iptables -nat -L
iptables v1.2.8: Unknown arg `iptables'
Try `iptables -h' or 'iptables --help' for more information.
root@nat:~# iptables -t nat -L
Chain PREROUTING (policy ACCEPT)
target prot opt source destination

Chain POSTROUTING (policy ACCEPT)
target prot opt source destination
MASQUERADE all -- localnet/24
anywhere

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

Thanks for any help.