PhysX card is not recognized

I have a GTX 285 which includes a PhysX processor

I have all the drivers a day (today)

Some games recognize my PhysX card but on the other tell me that I have not ...

what to do?

All games do not support PhysX, it must be normal!

I will repeat more clearly

Certain games PhysX does not recognizing my PhysX card
while the other games PhysX reconnaissance .

what to do?

Your games are updated?:whistling :whistling

Maybe they are simply incompatible with the nVidia PhysX implementation.
Your graphics card does not have a PhysX processor. After nVidia has bought AGEIA, they used their technology to use CUDA GPU to handle PhysX. It is possible that some games attempt to use the acceleration by a PhysX card and not the GPU acceleration.