Cheers Baph,
I've checked the router options using the web interface and there doesnt seem any options to 'group' by connection type. As far as I can see the router is set up and doing its job as to internet access for both machines. I just hope its not as you say with the 2 groups not allowed to talk to each other as I did say this is what I wanted it for to the tech guy in PC World. I dont really want to go wirelesss on my pc as well, I prefer the stability and speedI get using the cable on my main pc. Oh well, another day bashing my head!
