Asus Vg248 Monitor 144hz monitor. red lines at 120hz??

mig_e

Honorable
Dec 11, 2012
11
0
10,510
The Monitor works fine at 60hz but when ever i put it to 120hz or higher i start getting weird red lines all over the place. I dont know if the monitor is bad or if im having problem with my other hardware. i have a HD 6670 and the monitor is connected to a Dual Link DVI running at
1920 x 1080 ..
Ive tried taking the gpu out and using the onboard .. but the onboard only runs at 60hz and like i said at 60hz it runs great.
i also updated Catalyst in cause that was the problem .
Motherboard: Gigabyte Intel Z77 LGA 1155 . Can anyone help me.. id like to know if its the monitor or not so i can return it if its the one causing the problem. im fairly new to 120hz monitors so i might be doing something wrong

Here is a picture of how it looks like to give you guys an idea http://i34.tinypic.com/143l57b.jpg
 

mig_e

Honorable
Dec 11, 2012
11
0
10,510


i am slowly upgrading my computer -.- geez got the monitor first cause it was on sale