Hi, I have two imacs in the same room and am setting up networking. I have bought two firewrie cables and a repeater to connect them to make the distance. My question is - how do I activate it? When I turn on the computer I'm supposed o do something really simply but I've forgotten the instructions. I just want to file share between computers and use programs installed on one throught the other. I'd love to be able to use the internet on both but I was told that the firewire cable had to plug into the internet port.