g5 with an issue

Apple technology

DVIsochComponent.c:1191: failed assertion `!(deviceDescriptionPtr->clock == 0)’

we use firewire to video bridges from Canopus. Lots of them, the ADVC 100 and 110 are quiet nice. Seem to work very reliably.

One of our G5s however stopped cooperating after we install 10.4.
The other G5 we have is fine, and so are all G4 based installtions.
If I would not have found this then I would think it would be a hardware bug. Like this it sounds like a 10.4.1 problem.