it seems you're using the firewire port on your laptop? most firewire interfaces work best with firewire ports using a TI based chipset.
in your case, an expresscard with a TI chip might help. search around the GS site and I'm sure you'll run across fw cards that will work for you. I don't use a PC laptop so I don't know of any off hand.
I'd google 'laptop firewire card gearslutz' and start there.