Hi
I'm running 3x 1920x1200 eyefinity (resolution 5760x1200), and when steam uppdated DCS to version 1.5 I got the "squeezed" version of the menus. If I manage to get into a cockpit everything looks fine.
My solution to the problem was to edit my monitors file so that the UIMainView = look like this :
UIMainView =
{
x = 0;
y = 0;
width = 5760;
height = 1200;
}
So if you have problems maybe this will help.
Happy new year!