You still had the game screen up when changing resolutions, even when I said to forget the game screen and just change desktop resolution only. You make videos of what you are doing which is much appreciated as it allows us to see what you are talking about.
Something has changed and I don't know what, on my end. I have changed my desktop to 1920x1080 and the game to the same with it in windowed mode, somehow my screen in now top to bottom fit and almost as wide as my monitor, it's clearer to me with the reading glasses and doable even without, got to get used to the new feel of that resolution, but it should come in time.
What I mean something somewhere has changed, maybe I have been wrong. I have 37 icons on my desktop along both the left and right edges of my monitor.(I have since moved maybe 4 or 5 into a tools icon I have so now somewhat less then 37) What I remember from before happening is as my screen got larger(moving down in resolution) it widened and moved icons beyond the left and right edges of my monitor, thus losing icons from the desktop. I noticed when you were changing resolutions, the small window for the game was changing and your icons moved, but stayed on screen. I then went and changed mine and they did not(unless I remembered wrong)move off screen but towards the middle of the screen, even down to 800x600, they were big but I still had 37 on screen. The is one of the reasons I always hated going into safe mode, I think the standard resolution there is something like 600x400, very big.
So to end all of this I must have learned something or at least straightened out my remembering(which was wrong), but maybe if others where following this, they learned something also, as I did, and are having an easier time with the game.
One note if others are reading, if when you changed resolution or from full to windows, after saving selection, restart the app and the screen will be correct. The taskbar will not be covering some of the bottom of the screen.