Hi Dustin,
Try disabiling the 1394 port in the “Networking” panel. This prevents windows from accessing the firewire port.
Also, try another firewire cable. I had one die on me out of the blue.
Check and see if the firewire port is still correctly installed in control panel / Update the drivers.
If all else fails, try your DVX on another computer and see if it connects.
Hope this helps.
Scott