When I open my models, they are all rendering terribly. I don't get any comment about anything being corrupt, but I can't use the model the way it is.
After seeing this I upgraded from DSM 4.0 to 5.0 to see if a new build would help, but no.
Even if I start a new file, the new display box has the same blurry diagonal lines.
Existing Model Screen shot
New Model - No Edits yet
Not sure what to do here as I can't seem to use the application anymore...