Yes, all that's in there is my 260.99 drivers.
EDIT: Here's another thing: First time I ran AO, it was slow and etc like vanilla ArmA 2 has been after the first time I played (seriously, first and second time I played ArmA 2 it ran fine; like the demo. Then I closed it out, and played another game, came back and suddenly it's all choppy and unplayable. Wtf?).
I ran One Shot, One Kill, like I said above and it ran fine.
Now I try to play it, on VERY LOW settings (as opposed to Very High/High) and I get like 2 FPS.
What is going on?!?!
EDIT 2: Just played again.
Everything ran perfectly, except a few hiccups but I think that's because I was hosting a co op game and my buddy was from Denmark so...
Who knows.
This is weird.