I’m using two monitors. I tried this and it didn’t solve it. I just re-installed Rhino 7 and nothing. It’s weird because now i’m testing rhino WIP and shaded view doesn’t show this strange shadows (though rendered/artic view are laggy, but i think this is due to shadow quality memory 
, so no biggy there).
Rhino wip
Rhino 7
I’m most worried about shaded view because it’s a basic and not taxing view style for modeling.
Is there a way to download past versions of rhino 7?