sometimes dan with a stuck pixel, a pixel permantley coloured, you can revive them by rubbing them for a while, but not too rough cause you dont want to damage the screen.
Red, green, or blue on a black background are "hot", not dead. Dead pixels show up on a white backgroung. Hot pixels are much more noticeable.
There is no rhyme or reason to why they go dead. Normally, it's just part of the manufacturig process. About all you can do is make sure you don't block the heat vents on the panel, or buy one from a manufacturer who has a zero defect policy. Rubbing the pixel area is not likely to work. The closest to a zero defect policy (that I've found) is Princeton Graphics SENergy line. They have a zero hot pixel, 3 dead pixel warranty for three years. I believe Samsung has some sort of zero-defect policy, but only in Korea (or Hong Kong. ...can't remember).
Message Edited by mitchedo on 01-22-2005 06:55 PM