Originally Posted by grey_1
I don't have Dirt 2, but after installing these I had a few CTDs and lockups. Rolling back the physx driver seems to have fixed that.
So far I've tested-
-with no crashes or lockups. The DX11 titles are smooth with good IQ. Oh, GTX 470 and Win7 64bit.
you seemed to had the same issue.
for some reason in this 257.15 driver, physx sometimes fails to install correctly.
just a heads up to anyone reading this, if you have issues, uninstall and reinstall physx.