COD: World at War PC crash

When I first installed and played the first two chapters, everything was smooth and fine. During the third chapter "Hard Landing" the game loaded up 100%, I got a black screen and the windows tool bar showed up and it's got a DirectX error. I have tried to open the error message, but the entire system was frozen up, and the only resort was to force restart. In some occasions, the game eventually started on that chapter, w/o a blackscreen, but that didn't last for long when I first encountered the enemies, and the system crashed again.

The same chapter "hard landing" crashed on coop mode as well, but the weirdest thing is that I could play on any other coop maps, and I assume that the crashing bugs only occured on that chapter.

Please, if you have the solution, help me out.

Should have got it on 360.lbarlow90

and then get a rrod? no thanks. make sure your directx is up to date

thanks for the advice, but I have already updated every drivers.

In addition, now I seem to have another problem. There is some kind of graphic bugs that showing weird colors everywhere in the jungle, I could barely see the original texture of the game.