Thank you so much! This fix not only fixed ArmA for me, but now it lets me run maxed out. Before applying this fix my computer could barely run at 1280 on low settings. I was monitoring my hardware and noticed my CPU being maxed out during the entire game. After applying the fix at maxed out settings with full AA the CPU load is only at 85%. On top of this fix I also changed my GPUs ArmA settings to Application Controlled except for image quality which was set to The Best or whatever.
Thanks so much!
AMD XP 64 3500+
2 GB RAM
BFG 7800 GTX-OC
Way too many HD's