I doubt it is your LCD panel, they only take the signal and display the image. I suspect the video card drivers. If it were an old machine I'd say buy a new graphics card but since its new (and you probably paid a few bucks for it) I dont think you want to go thru that.

Find out what card is inside (from the manufacturer probably) and update your graphics drivers.

If that dont work perhaps the computer has a not so good graphics card inside.