OK, well basically, I reinstalled ARMA 2 because the play option didn't come up in the DVD autorun window and also for some reason it stopped asking for me to insert the DVD (which I'm sure it used to do) when trying to start the game without the DVD. I know they aren't big things but I just wanted to fix them just becaue they werent doing what they were supposed to even though it didnt affect the game in any perceivable way.
Anyway, now that I have reinstalled it there is bad/frequent stuttering happening when before there was little to none. I've tried putting the graphics to their lowest settings and still it persists. I've recently updated my graphics card drivers but that didnt help at all.
PC specs are as follows...
Windows 7 Home Premium 64bit
Intel i7 920 2.6GHz
6GB DDR3 RAM
ATi Radeon HD 4850
I have the retail version of ARMA 2 with the 1.05 patch installed.