Samsung 22-inch high-resolution liquid crystal displays in glowing

I just bought a Samsung 22-inch liquid crystal display, but found that in 1050/60 * 1680 Hz of the screen will flicker, I would like to ask is why, how to solve.I used the card is NVIDIA's 9400 GT

card is not a problem
cable is the problem
you are using a common line of VGA it also does not blink Can not take a closer look at,

that is the host of electromagnetic radiation interference, VGA signal line is the pulse
vulnerable to interference if your monitor support DVI digital interface, then proposed to buy brand-gen DVI Digital signal line (the interface is white) can be completely eliminated
If we do not support the DVI display on the line to buy VGA to shield the root of the brand.To good effect you can not see