CANT oveclock with det 4's......WTF?

[ToyMachine]

Overclocked just fine on det 3's, installed det 4's, overclocked, ran a benchmark, freezes up on last test every time. LAME!!!!

One question...how do i uninstall and go back to det 3's?

 

[ElFenix]

control panel> add/remove programs>nvidia detonator XP or whatever it is.