Thank you for the suggestion, but unfortunately it did not fix the issue for me. My graphics drivers are up-to-date, and the issue persists whether I have legacy capture mode on or off. The only thing that consistently works for me (for a short while) is restarting the remote utilities host service, but this is a problem too because the service fails to restart about half the time, so I have to get into my remote computer using another method, then restart the service, then reconnect with remote utilities.
Please let me know if you have any other suggestions.
This problem went away for several months but seems to have returned with at least the most recent version (184.108.40.206), which I have on both my viewer and my host side. Same symptoms/behavior as before for me.
I am also still experiencing this problem intermittently. It usually works, but occasionally when I connect, I see both screens and am unable to change the monitor using the menu. Restarting the remote utilities service and reconnecting has always resolved the issue (at least temporarily) for me.