Again?!?!

At this point, I could only guess that there is a fault on the display board itself, or that too much power is somehow being fed into the VFD. I am not sure how it could happen, but hopefully someone else here will have an idea.

The bad news is that I do not have any VFDs left - not even a personal spare. It looks like I might have to put a call in to Noritake if the glass is bad.