"out of range" problem with gpu tweak? Help needed!

[-harru]

Yesterday i tried to overclock my 760GTX with asus GPU tweak. Everything was ok till i changed between some presets that i made in GPU tweak and my screen just went black and i got "out of range" message on my BenQ xl2411z (I suspect that it has to do with the refresh rate slider in gpu tweak). So that is the situation on the DVI-I port of my graphics card but the DVI-D port seems to work like its supposed to. I have already tried uninstalling gpu tweak and reinstalling nvidia drivers. So i need some help fixing my DVI-I port!

Thanks in advance.