Dave Friesen paused, thought it over, and spoke thusly: >While the actual cause is still up for debate the solution I sent to this >list is a special cable from FW Depot which is a 6 pin cable which omits the >two power wires. It prevents any power feedback but also prevents a FW bus >powered device. Which apparently is ok as the port issue (hopefully) is only >causes by FW devices that are externally powered. Not that simple. An arc between the power and data path, *anywhere' (in the device, the cable, the port) will fry the port. Unless the port has a circuit to prevent. ~flipper