Physx error

[Germaximus]

Hi, i recently got a new video card and i just ran this game right after installing it and it worked fine.
Now 2-3 days later i was gonna play it again and im getting a physx error saying physx wasnt installed correctly.

How can i fix this?

If i reinstall the game should that fix it?

[arizonachris]

If you open up the game files with Windows Explorer (should be in the "steamapps" folder) there should be an .exe for PhysX. See if reinstalling the version that came with the game helps. You can also try verifying the game files.