1. My graphic card is: Nvidia GeForce 7600 GS
2. In C:/program files/AGEIA technologies i see some folders:
AFAIK, 7xxx series has NO physX support.
But the game still should work since it doesn't uses GPU acceleration for physics.
Hmm... try to copy following files into your "bin/" dir where Divinity2.exe is:
c:\Program Files\AGEIA Technologies\v2.8.1\PhysXCooking.dll
c:\Program Files\AGEIA Technologies\v2.8.1\PhysXCore.dll