The two button files will only cure problems with the campaign map, this is because they are physical parts of the campaign map UI (the up/down arrows on the unit/building review panel at the bottom of your screen).
There is no cure for the problem in battles. It is caused by the Nvidia display drivers. I advise that you have a quick skim through the thread below. You will not see any solutions there, but it will give you an idea of the scale and duration of this problem. So far Nvidia have not commented, nor have they done anything to help their customers. You will see that of those that contacted tech support, I think pretty much all were told that the game itself was to blame.
I advise that if you want have any hope at all of running this game, you should invest in an ATI graphics card. It is not guaranteed that it will work, but people are having much more success with ATI than they are with Nvidia 8xxx and 9xxx series graphics cards.
http://forums.nvidia.com/index.php?s...9&st=0&start=0
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