Firewire-isight-ichat Crash



I am having trouble with isight. I have recently upgraded to 10.3.9 and quicktime 7. Just yesterday I tried to use an isight with ichat. When the camera is plugged in ichat automatically starts. when I click on the green camera button, ichat crashes. This happens in other software too.

My other DV device isn't working anymore either, but my firewire audio device still works.

I have a g4 powerbook 800 (black keyboard).

I've tried just about everything and I cant get it to work....

any thoughts?