Problem using transparent proxy and iptables 1.3.1

[Rafael Vallejo <rvallejo@xxxxxxxxxxxxxxx>]

Hello list

I'm having a problem with iptables, we recently instaled version 1.3.1 
on a Linux Kernel 2.6.10


This rule that used to work on former versions of iptables no longer 
work on 1.3.1

iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT 
--to-ports 3128


Any ideas?