My band is trying to lay down some tracks on Logic express 8, and we have a presonus firebox with the firewire 600 inputs. I have a cable which connects a firewire 600 to a firewire 800 in my 15in Aluminum MBP, but when we connect the firebox with my computer, logic will not pick up the new input at all. Power supply transfers fine, the firebox lights up and all, but nothing recognizes anything has even been connected. We are kind of new with logic software so any advice is appreciated to solve the problem, since it could obviously be something very simple. Are we missing a driver? Does the firewire 800 not automatically read inputs and we have to tell logic to look there? We are used to an old blackbook automatically picking up the new input devices with its firewire 600.