I've tried windowed vs fullscreen, several compatibility modes for exe., no change, still have the window problem.
Windows pop up pretty regularly when hovering over buttons, even when not hovering over buttons and the cursor is off map on left or right.
Enjoy when you can, and endure when you must. ~Johann Wolfgang von Goethe
"Be Yourself; Everyone else is already taken" ~Oscar Wilde
*I'm in the Wargamer middle ground*
I don't buy all the wargames I want, I just buy more than I need.