The Touch Function On The Whiteboard Is Not Working. Tech Support October 25, 2018 14:27 Updated Follow Ensure sure all the USB cable from the whiteboard is securely connected to the ScreenBeam Enterprise 950 receiver. Ensure the calibration process has been completed properly. This must be done after the software is initially installed. Related articles Video And/Or Audio Is Cutting In And Out Occasionally, Or Mouse Movement Is Not Smooth. Comments 0 comments Article is closed for comments.