Screen turns to black and coloured dots using Adobe Acrobat Reader DC 2020.006.20042

[ianb69343217]

Using the latest version of Adobe Acrobat Reader DC on a new HP laptop with Windows 10 installed.

When opening ANY PDF in Acrobat Reader DC, the document opens fine, but when I scroll down, or click on it, the screen goes all distorted - it turns black, with coloured dots.  

I've tried repairing the install, and tried uninstalling the software & reinstalling it, and made various changes to the settings, as per previous guidance I found on these forums.  I've also been on to HP who have reinstalled the video drivers, but to no avail - the problem persists - examples below...