Lost OpenGL on Win10 PC?

[Franziska]

Hi,

on our Navigation Laptop OpenGL is gone all over a sudden.
It was running flawless for many months. I used MBtiles often and I used to see the Radar overlay without a problem.

The last thing I did before (and this might not be related) was putting it into course up mode when radar was on.
Suddenly no more radar image and no more MBtiles and a greyed out OpenGL tick box.

We have a second similar computer with identical setup and OpenGL is working fine with it.

The backup one (Let's call it B-PC) has OpenGL switched on, the normally used PC (Let's call it A-PC) has the option to switch it on now greyed out on OpenCPN.

Both are:
Dell Latitude E7240
Both run OpenCPN 5.8.4-0
Both run
Windows 10 Pro 22H2
19045.3516
Graphics driver:
Intel HD Graphics Family
20.19.15.5063
29.10.2018

I tried reinstalling OpenCPN on the faulty machine (without killing the configuration file). No change.
I also deinstalled the Graphics Driver and reinstalled it. No change.

Any ideas how I can get OpenGL working again?

Thanks.