Stratasys Dimension bst motherboard

Hi all

I'm a bit new here.. I have recently bought a dimension that has a suspect main board issue (replaced the computer) and now it seems that the main logic board does not want to play, they call it the 186 board. Does anyone know to any second hand units around that may have a good board in, or any common errors with this type of board? Would be ace to get any help, failing this I will strip all the dimension boards out and replace with USB controlled stepper board - could be by far the easiest option?

Any help would be great as they are a little new to me!

Thanks
Will :)