I've been running my old PRT with an XP computer, an old Dell I had laying around. (I keep it off the network when I don't need it to be)
It's been a good setup for years and years.
Saturday she finally died.
I grabbed an old Windows 7 laptop off the pile of discards and loaded it up with SB3...
After some futzing around and reading up on Brady's notes about Win7 I got things up and running. Everything seemed fine.
I was cutting some plywood, and I heard a loud bang. I thought maybe I had broken the 1/4" bit I was cutting with, but then I see the machine had stopped moving. After shutting down the router I saw the bit was fine.

Now I can't seem to get my laptop to talk to the control box.
I even tried with a different laptop, but nothing.

I get a "Shopbot seems present" message when I start SB3, but it won't find the control box.
When I turn the control box on, I get a clunk, and the gantry is solid.
I can't update the firmware, nothing.
Any thoughts?