2 simple subnets and internet. H E L P

Hi ,
I have a home network, consisted of 4 computers. One of them is 'server' , which I would like to assign to share the internet connection to a connected to its interface subnet . In this subnet I am trying to connect a laptop running on Vista but it cannot comunicate with interenet.

Please look at the image.


( http://img39.imageshack.us/img39/3 [...] oblem1.jpg )

the problematic computer is "new client" (10.0.0.2/24 with gateway set as 10.0.0.1).
server runs a slackware linux with iptables configured with only one entry

Every computer on this image besides new client can connect to internet.
New client hovever can't connect to router. it can ping new server on both interfaces 10.0.0.1 and 192.168.2.77.


I must be missing something basic , but at the moment cannot think of anything. Thank you very much for your help.

Jan

Did you bridge the two NICs on New Server? If not then you need to setup some form of routing to enable new server to transmit data on behalf of new client.