Hello,
I've got some problems seeing the objects, this means i can't see them. As example: At the first mission on the airplane, I only can see flying eyes from those guys just like the beach, I can only see the ground/terrain but thats all.

My system:
AMD Athlon 64 X2 Dual processor 4200+
2 gb RAM
nvidia 8600 GeForce GT
Windows professional
Service Pack2

And I already downloaded the driver that someone posted on this section. So, what causes the game?

Thanks in advance