How to disable automatic install of nvidia drivers?

[padrino]

I use Envy to install a working set of drivers since the versions included with LMCE simply do not work for my 7600GS. Every reboot LMCE reinstalls the non working drivers so I need to figure out how to disable it, does anyone have a pointer or two?

Thanks

[Zaerc]

See Display_Drivers in the wiki, and please feel free to add extra info on Envy.