Thanks for that, I am hoping that it is just the PP card. Hopefully I will receive a new one by Tuesday. I remember when I could have popped over to PC world and picked one off the shelf but times seem to have changed.

Replacing with a bob and drivers is my backup plan if all else fails. It is exactly as you put it so well: A lot of work over possibly over a simple fault. If I did end up going that way, with 2 steppers on the X axis, could I get away with 3 drivers or would I need 4?

Cheers,

Gavin