Updated NAV seems to interfere with screen saver and power management

I just installed Norton Anti Virus version 20.3.1.22.  For some reason after my screen saver has been active for about 30-40 seconds the display reverts to the active desktop screen.  The display is set to turn off after 30 minutes of inactivity, but this does not happen with the desktop staying active.  Prior to upgrading to this version I did not have this problem.  Installing NAV is the only change I have made to the computer.

Is there a setting somewhere I am missing that needs to be changed?

Thanks in advance for any help you can give me.