OK, thanks for that Pegasus_Eagle I might try those and see how they perform.

(Edit.) Tried the 305.53 but find the beta 304.79 work better for me at the moment, so staying with them. Once the next set of drivers have official backing will try those. The 305.53 drivers aren't listed with Nvidia at the moment and I see that they maybe a developers release from other posts I have read.