New U2412M with lines green and other defects

I just bought a U2412M for use as a secondary monitor, but when in use, there is a certain green lines dotted on the screen flicker. I also noticed persistent horizontal white lines in the areas of gray. I guess it's a driver issue, but I have since any updated drivers for the video card (NVidia GeForce GT 540 M running Win 7 on an ASUS A53S laptop) and not monitor itself - no change at all to the glitching.

Note that I have at home an old 2405 FWP that works very well as a secondary monitor.

Thank you for your time.

The laptop is not a VGA output port? If so, test this way =

Laptop output VGA-->--> U2412M input VGA VGA cable VGA

Tags: Dell Peripherals

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