After loading the new 7.5.18 last week, I set up to use the portrait mode for my southbound trip - everything worked just great. Getting used to the new button placement was easy.
My next leg (N47 - OQU) was ENE bound, so I reset to landscape mode, but the underlying sectional would not display the top half of the screen! Tried power off/power on, reset to portrait mode/landscape mode, no joy. Finally, out of desperation punched the screen a few times in the empty area and finally got the whole screen to display.
Any thoughts?