I have a Sharp LL-T15AA-B monitor which has recently developed a fault. The extreme 1/6th left hand side of the screen is fine but the remainder appears to have lost every other row of pixels, resulting in a faded look. There are faint columns each approximately 1/6th of the total width.
The monitor has not been moved or damaged so far as I know. I have tried it connected to thre separate PCs all running Windows XP and have the same problem on each. When I connect a CRT monitor to it's parent PC, the display is fine.