Same here…..using MSFS2020. I departed KLAX heading for KATL…..i was climbing thru fl260 when i noticed the screens were not reacting to the mouse curser. It was then that i realized the PFD was frozen, as was the MFD. i went thru the flight deck pressing buttons and none of them were reactive. The aircraft continued to fly, although I’m not sure it followed the route as i couldn’t track since everything was frozen. Any advice on how to fix?