PhysX Not working

[Princey]

I have a 470GTX and a 8800GT as my PhysX card. However when I set the 8800GT to be my PhysX card in the control panel it just just uses the CPU in game. There is no activity on that GPU what so ever according to GPUZ. I'm currently running the latest beta drivers but I've also tried several previous drivers too.

I've tested in Mafia II and FluidMark.

Windows 7 Home Premium 64bit
Gigabyte P55 USD5
4GB XMS3 DDR RAM
i5 760 @ 4.0Ghz
EVGA 470 GTX Superclocked
Standard 8800GT 512MB
Coolmaster SilentPro 700w

All devices have the latest drivers.

Here is my settings in the nVidia control panel.

 

[Princey]

So it appears that Batman works fine using the 8800GT. I must have picked the only two packages that don't!

 

[Princey]

Right the issue I'm having is that it keeps thinking that the 8800GT is my main card so keeps trying to display an image on that rather than from my 470GTX. As you can see my GTX is the main card and the 8800GT is set to PhysX so I'm at a loss here.

 

[Princey]

It doesn't want to boot from my main card now, the 470GTX so I have to hook my monitor upto the 8800GT. This is what I'm seeing in the control panel. As you can see the 470GTX has vanished.

So to sum it, it started off as some games using the 8800GT as the Physx card and some ignoring it and passing it onto the CPU. Now the system thinks that the 8800GT is my only card and will only display an image on it. Despite my having my TV conncted to the 470GTX via HDMI.

 

[Princey]

Yes.

 

[Princey]

I've tried all things now, so sod it. I've pulled it out.