Re: Error when using NVEmulate :-/
nvclock -l shows the nvcontrol options it supports. It should mention nvemulate in it aswell. Then using nvclock -q nvemulate you can ask what values are supported. The option can be enabled using nvemulate: nvclock -a nvemulate=30
Note that no matter what option you use for enabling nvemulate, check if the opengl renderer string has changed (check glxinfo for it).