Attached pictures will give the greatest information about my problem, it's somewhat difficult to explain.
I have searched forums and google for answers and the only possible explanation I have is that perhaps I really do need DirectX 9.0b instead of my current version, 9.0c.
I have Windows XP, BFG 9800+ GTX, all updated video drivers, and I've never had a problem like this before.
I've tried many different lighting options and none of them give me any success, and I've tried different resolutions and different texture/all other advanced graphics options to no avail.
I have tried both 1.4 and 1.33 patches as well.
All of my other games work great (Crysis, Assassin's Creed, COD4, etc.) so I do not think it's a graphics card related issue.
I have even tried loading other levels using save games from quite some time ago and I have had no success with that.
I once had an ATI graphics card in this computer and have since removed ALL related drivers which was also not the solution to the problem.
Help me please!