Ok this problem has been pissing the shit out of me! Im trying to capture video off my DV camera using firewire, and it keeps randomly disconnecting. Im using windows movie maker to capture (since I like the on-the-fly compression) but Im having the same problems when I capture using Sony Vegas, which is raw. I cant capture the entire tape without it disconnecting... ever. I have a PCI card which has 5 USB and 2 Firewire ports, which I use for this. Only 2 USB ports are being used.