Really you should use a router if you want to share Internet access. The router plugs into your ADSL line and connects to PC-1 via USB. PC-2 then connects to the router with an Ethernet cable. Run the Network Setup Wizard on both computers and it should work ok. Most people say you need a crossover cable to connect the PC to a router, and the guy in Maplin gave me a crossover as well. But when i tried to connect it it wouldn't connect and the LAN light wouldn't even come on the router. So I took it back and swapped it for a straight cable and it worked. So this could also be one of the reasons you're gettin limited or no connectivity at the moment.