I'm running into the same problem. I've deleted the Saved Games>DCS>Config folder, I am clicking on a function for the said controller. I am able to save, but unable to load. I click the button and hear the button click sound but no window opens. I've tried loading the game as administrator and regularly. Any help would be greatly appreciated.
My specs are as follows:
win7 pro 64 bit
i7-920
24mb ddr3
2x 550ti
controllers:
x52 & combat flight pedals