I don’t know what happened but SketchUp was working just fine until recently. SketchUp seems to still open files or create a new file just fine but I can’t see it. I can select a tool (such as the line tool) then click once and drag it around the screen and see the following:
My graphics drivers are up to date and so are Windows 10 and SketchUp 2018. I tried using the CheckUp tool and it told me Sketchup was ok. Reinstalling SketchUp did not fix the problem. Restarting my surface did not fix the problem. A friend with the same or a similar surface is having the same issue with SketchUp 2018 so I suspect a W10 update may be the culprit.
I have not tried uninstalling recent updates yet (and setting my connection to metered to prevent future updates) since I don’t know if that will work and Windows takes ages to update sometimes.