I am trying to run the demo on Windows 7 64 bit.
If I just run it as installed the game runs but the game window is under the windows taskbar (which I have on the right of my display) which makes it impossible to advance to a new turn.
If I change the compatibility settings and check the disable display scaling on on high DPI settings then I don't get the taskbar on top of the window, however all the text looks to be too large - most noticeable is the text in the 1st tutorial extends off the right of the window for it. The game is running at a higher resolution - the unit window doesn't go as far across the display and there are black borders on either side of the menu screen - the one with new game.
My display is 2560x1600 with fonts set at 150% - 144 DPI.