When I host a meeting and try to allow my guests to use the white board, the marks appear approx 6 inches to the left of where they are trying to draw. My marks appear as expected. This appears to be related to my use of dual monitors. I am running Win 10 on a laptop with an extra HDMI monitor set to extend my desktop. If I disconnect the extra monitor, guest drawing appear correctly. Both monotrs are set to the same resolution.