just reinstalled the game and i need that d3d9.dll files that fixed the npc problem. Thanks in advance.

http://www.megaupload.com/?d=0AJXCSDI

My upload. For Nvidia.

Megaupload.com is potentially hazardous, several people reported picking up trojans from ads running on the site when this fix originally showed up. It was uploaded to the Nexus for just this reason:
http://www.newvegasnexus.com/downloads/file.php?id=34778