Aha thanks - by chance is there any other solution, since 100% is normally too small for me (Surface is a relatively small screen but high rez). I might look how to chance the DPI on the fly as well....
EDIT: Turns out you can set DPI on a per-app basic (right click on .exe)
P.
I've set Avadon to play at my PC's (Surface Pro 3) native resolution, 2160 x 1440. However, when I play the game, the edges of the gameplay screen are outside the display - icons at the top-left are partially cut off, for example. Any help appreciated on this.
P.