Shader/Shadow issue

[usmc123 1]

So heres the thing I have a fully updated 7900GS graphics card and I'm running ArmA, however I get these weird shadow or shader problem. It's not bad here but on desert maps and such it really shows, and I see it wherever I look.

http://i194.photobucket.com/albums....6700441

[pathetic_berserker 4]

Check the BIS wiki,

particularly here

http://community.bistudio.com/wiki...._Issues