Hello everyone,
@stevebaer, I have tried what you proposed. I have tried even forcing several 3D options from the AMD driver
@stevebaer, I am not sure what kind of Graphics card you have. I have a mobile Radeon Pro WX3200.
@wim, by the way, you have already contributed to correcting a glitch in the graphics in my other post.
Rhino 7 had this glitch as well and it was corrected, together with the problem of the edges after my post. Rhino 6 had the glitch corrected, but not the problem of the edges.
Anyway, it seems I will have to get a Workbook with an Nvidia Graphics Card next time.
Poor AMD…