Thanks Rupert
Seems on monitor - problem -tested it on its own
also looks very hard to cure -stripping it down and trying joints top/bottom
cheerss
Jacky Williams
February 2020
This could be down to a damaged screen or a graphics card issue, but changing settings such as the refresh rate in windows could possibly help. Rather than me trying to type a full description that's easy to understand, take a look at this link and follow the steps suggested and hopefully this will help.