Recap and advice for SU18:
When I reported the original bug last year:
“Serious Bug in Sketchup 16 Preferences OpenGL Settings”
I found a work around involving unchecking hardware acceleration, closing the preferences dialog, then opening it again.
In SU17 they tried to solve the problem by automatically attempting to set the optimal settings. This is a laudable goal but this is almost impossible to do given the number of cards and drivers out there. The correct solution going forward would be to keep an “advanced” button to allow the user to override the automatic settings if necessary.
Otherwise we will have this problem every year.