Cubase 12: Screen shaking

I’ve just installed Cubase 12. Every time I run it, the image on the screen constantly shakes about 3 or 4 mm from side to side.
I occasionally had this with Cubase 11, but normally if I switched off and on again, it was fine. But now it’s constant. My machine is a good one with 32 GB RAM and SSD, and not more than a year old.
Is anyone else having this problem, or can anyone offer a fix?

Does it look like this?

Yep. That’s it exactly.

OK. It’s not happening on my system but I see Armand from Steinberg is on the case and has committed to come back with his findings this week on the other thread.
Hopefully he’ll come up with something that will help you out.

Great. Thanks.