Joint Task Force Help?

[Sweet-16]

downloaded the JTF demo to test it out. the game itself is due to release the 5th of next month. i'm axiously awaiting it too. the ai is great and will execute their orders in the safest and best way.

now on to what i need help with. for anyone else who has downloaded the demo and had this error, and has fixed it, what do i do? i have reinstalled twice and i have PhysX. but still says it's not configured right. any suggestions?