Ok, I am guessing that as the sun rises/sets the map's texture changes.
It is getting near sun-set and the map is becoming "spotted".
I'm guessing this is simulating the sun-set. If it is, I really am disappointed. PC's these days can show "squillions" of colours. Why is it that the map is "dithered" (spotted) as it is to show dusk? It makes it more difficult to read with all the dots.
I've looked at every topic in the help file and I am missing the piece which says how to turn this off. (Does it exist?)
I'm really not happy posting all these questions as I look like a total idiot, but honestly I've never found a good help file in any windoze program.
Also, on colours, last time the flight which I am tracking was WHITE. Now it is PURPLE.
Does this mean each time I run the program it picks random colours for what is what?