Your machine does seem to exhibiting the same behavior mine did before it was cardbus-enabled. I tested it with a firewire card to just to see if it worked and kablooie. Have you tried a usb card? Andy > I have tried every possible driver combo on 8.6 and 9.1 and > firewire works - erratically. Usually my card doesn't come up and the > finder quits, or, if I insert on 8.6 before start up, it locks with a dark > screen until I remove the firewire card. But sometimes - rarely firewire > works fine on both OS's.