I recently acquired a B series CW and have been having issues when the sensors try to measure the boards length. I have already reviewed all on the troubleshooting steps, cleaned the sensor, ensured that things are properly lubricated. I have tried several boards of different lengths and widths after verifying flat and square. After centering the board in the machine attempting to run a project or using the measuring feature, the board will move forward and either stop when reaching the end of the board or start moving then will start jogging back and forth ant an increasing rate. I am a newbee when it comes to the CW, any assistance is greatly appreciated. JT