VIA VT6306 Firewire card

I've just installed a PCI USB2.0/Firewire card (specified on the box as being Mac OS X compatible) into my G4 dual 1GHz MDD . It runs the VIA VT6306 chip. I installed the drivers and the USB ports work perfectly, but the FW ones don't. Apparently they're supposed to run using the native Apple FW drivers, and indeed System Profiler shows the PCI card as being installed with 3 USB buses and one FW400 bus. But none of my peripherals (DV camera, iPod, scanner, hard drive or audio interface) will work using these ports. They are currently all hooked up via a hub to one of the on-board FW ports, as the other one has failed, hence the purchase of the new PCI card.

I've searched the web for information, but apart from someone else with the same problem, there's no fix given. Can anyone help?

Regards,
GJB

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