Also getting partial screen freezing. New X, < 1 mo & 770 mi, system up- to-date. Several times the Nav system has frozen showing that I'm in a spot where I had been. When frozen can't use cruise-control or any of the autopilot features. Never have used a thumb-drive in the car. Only a few previous Nav waypoints. Rebooting doesn't help. "Correctes" itself overnight than happens again in the next day or two. Tesla support clueless. Any ideas?