make sure you are connected correctly-
if you have a desktop and are connected to the onboard video port, you are not using you nvidia-
check this link-
https://discourse.mcneel.com/t/rhino-crashes-like-crazy-wait-are-my-monitors-plugged-in-correctly/113015/2
if you are using a laptop with an external monitor, make sure your laptop monitor is set to be the main display, NOT the external.
still not working? call us at tech and let’s take a peek-
(206) 545-6877