I've bought a firewire cable 4 - 6 pin and it's not working. Just doesnt recognise the device. I plugged it into the firewire on my computer and it doesnt work. I have rung Canon and they said i should try and update my firewire card, but i'm not sure what mine is! and suspect that it would be a waste of time anyhow. Should i bust out and buy a budget firewire card? Anyone got any experience of fixing a problem such as this? Thanks for your time.