Cursor not working

Paul.

I have a surface tablet and a dell alienware desktop and have noticed lately that the when I move the mouse to the bottom of of the page it will not activate the desired action that I am trying for. If I move the screen up then the action is activated. This happens on both machines, so I wondered if there is something in the build that I am using that might be causing it. I am running 22h2, build 22598.200 on both machines. I have had some other issues with this build, such as my printer not being recognized until I run the troubleshooter etc. I am able to correct most of the errors I run across but this one has me stumped. Any thoughts?