Graphical Issues because of Shader?

[WhatsOneMore]

Heres something ironic after reading your PC's specs I am miffed, you run a Intel Core 2Quad Q9450, 4x2,66 GHz
4 GB RAM
ATI Radeon HD 4870, 2 GB

And I only run a
Intel P4 3.4
1 GB Ram
ATI Radeon 3850 agp slot 512 mb

Now I have no probelms with the game it plays fast and has no glitches except on loading, its slow as a dead horse, but my graphics are all good.

Now I am not bragging but only trying to say maybe its that PhysX stuff, did you get the latest update for PhysX ???

BTW I am running the ATI Catalyst drivers 9.4 from thier site, what do you have and do you run anti virus stuff while playing ???