I am using an older Dell Ultrasharp 20in LCD and I turned the computer off but my background was still displayed! The other monitor went black, but this one stayed on all weekend. I tried again and it ...

I've seen this described as "clouding" or "mura" or "flashlighting" on AVS forums. Cheap LCDs aren't the only ones that exhibit this... Sony's highest end LCD (XBR2/XBR3) had problems with this for ...