Found a fix....

Install the latest drivers again 77.72 and do this after......

Open the NV Control Panel and Choose "Colour Correction" in the left hand panel, then in the right hand panel click on the drop down box under "Apply Color Changes To:" and selct the option "All." Finally click on the drop down box in the bottom left hand side of the panel under "Color Profile" and select "Advanced Mode", apply the changes and your done