Looks like you guys have resolved most of it.... I will add a few cents of my own.
TO calculate what you can run, make sure you use a 4:3 aspect ration for regular screen monitors.
for 1280 width, you will be using 1280 x 1280(0.75) = 1280 x 960
for 1400 width, you will be using 1400 x 1400(0.75)= 1400 x 1050
If you do not follow that aspect ration, you will find your shield bar'n stuff not lining up properly with the overlayed graphics.
Also look through that ini file and find something called Advanced Graphics = 0.0 (If it is 0.0 change it to 1.0).