Render Window Visibility

Just purchased AOPro and still getting up to speed, but having a problem when moving the render window to my larger second monitor. Every time I drag it over from laptop screen it pushes the render view to the top right corner so that only about 25% is visible. It resolves as soon as I move it back to laptop. Attempting to upload image for visual…

Is this a known issue for anyone else? Machine is a 2015 MacBook on the latest Big Sur with SU2021.

thx