I was set up at a show yesterday and in the middle of running an order my laser just quit. The fans still run but the LED screen is blank and it will not return to home position. I was hoping it just got a little to warm and shut down but I have a bad feeling it is the motherboard since I have had it back in the shop for over 12 hours and it still does not work. I just wanted to see if you wise friends have the same impression I do or if there is some other reason I had not thought of.