I installed the latest beta patch ARMA 2 AO 112555 and I'm still getting the flickering shadow bug. When I pan around or move forward and backward, shadows flicker on and off. I've noticed this problem since Arma 2 1.11. The only fix is to completely turn off shadows, which obviously makes the graphics look worse, so it's not an ideal solution, but at least it works. I've tried every tweak I can find to no avail. In Arma 2 1.11, running at 60FPS, it still happens, so it has to be a bug that has still not been fixed.