Later on, I'll open it up and see if I can get it going again. I've got several spare CPU boards I can try - no idea if they work or not, and it could be a PSU fault.
I had a very quick look at the new software I found but I'm going to have to experiment with the cable to PC connections a bit I think.
I really need to find BA80 - they always seemed much better than the DAP4s and more robust.