CS:S Problem with Zombie mapz. please help!

[jayfx2]

Hi, There is something wrong wih my graphics and I dont know why. When Im on a zombie map(certain ones) I always get a purple/black cubes on a certain object like a tree or floor. But Today I saw something different and I get "white Lines" Throughout the whole map. here is an image of what Im talkin about. How do I fix this problem? I am running on a XFX 7900GS

 

[DCIScouts]

Was there a recent driver update that you installed?

 

[Bradan]

ur missing textures for the purple/black squares

 

[jayfx2]

Was there a recent driver update that you installed?

what driver is the latest driver? I dont think i have install the lastest one. let me know how i can fix this problem

 

[pokemon87654]

It just means you don't have everything that the map has, when steam downloads it from the server it sometimes misses stuff, the only way you can really have everything is to download the level online and but it somewhere in the steam folder, or just live with it (its not that bad is it??)