Friday our cutter was working fine. We came in Saturday to finish up some work and noticed the printers that weren't on battery backup were off. So there must have been a power loss. I turn on the 1998 305MPC and as usual after a power loss, the back gauge readout shows 55 inches. I run the back gauge to the front to re-calibrate it, but it didn't work this time. Now when you run it forward, the readout goes down past zero then jumps up to 69 inches and will even run into the clamp. I tried killing the power a couple of times and each time it does the same. Does anyone have any suggestions of what I might try? It would be greatly appreciated.