Would not be a bad idea to uninstall/reinstall nvidia physx

uninstall: Control panel > programs and feautes > find "NVIDIA PHysx" in the list and rightclick > uninstall

then go to http://www.nvidia.co.uk/object/physx-9.11.1107-driver-uk.html and download and install the latest one.

http://www.facebook.com/dragoncommander
http://www.facebook.com/DivinityOriginalSin
http://www.youtube.com/larianstudios