Shaded Areas Indicating Troop Movement

[Geraldb13]

Whenever I click on the trrop movement toggle button, the area goes from very dark to almost black. The details on the map are extremely difficult to discern (basically unplayable). I have re-install the game (and consistently run into an error stating that the file Menu1.fft is in use which is re-intsalled on re-boot). This does not correct the problem. Thnaks for any help!