You might want to hold off on installing these drivers if you overclock your GPU, as it seems nVidia have messed something up which means no GFX overclocking tools (neither nVidia's nor 3rd-party) work with this driver set.
Csokis, Rallyroach: please consider
filling in your PC specs so we know what hardware you're running. Also you can then use your sig for other, more important stuff.