I know it's my screen and was wondering if there is any method known to fix this apart from getting a new screen? I've plugged in a different screen on the same DVI cable and it works fine and used a different DVI cable on the same screen and the line remains, so this rules out my graphics card, that's if I'm not mistaken. Recommendations on any software that can be used to rectify this problem will be greatly appreciated, as I've grown to love my screen. It's a Lenovo D222 Wide 16:10 display 1680x1050. Thanks in advance.
If the error is present at all times, even when the computer is loading, for example during the bios/manufacturer initial splash screen, or when booting from a live CD (maybe an ubuntu live CD or some other). Then you need to resort to technical support.