Simon, new Nvidia releases tend to be better than the previous, so you probably ought to update it. Can't hurt, you can always go back easily enough.

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Hey Mike... The driver goes with the OS and not the app used.  So he would be using the 64 bit.

Don,
That's what I would have thought too, but we still get the 32 bit dll's in there with the 64 bit install. I just assumed the 32 bit apps were using the 32 bit dll's. Maybe that's the problem, that Poser is trying to use it, it does list tfhe 32 bit dll in the error message. Then again, I really don't know how much control apps have over the OS usage of OpenGL, so I really couldn't say.