Problem displaying in 120mhz

[DooMeR]

Hello, i have a 3d monitor 120mhz , when i set the mode to 1920x1080 120mhz, my display gets messed up it goes blury and text becomes unreadable.

Anybody get any ideas why, i recently got a new mobo Z68 chipset could the onboard graphics controller be messing with it. My grpahics card is a 480gtx and i never had this problem on my old motherboard.

 

[Surveyor]

Are you using a dual link DVI cable?

You need to for 120Hz.

If you're just using an old cable it may not be dual link.

Your monitor was likely supplied with a dual link cable.