As many people are getting LCD screens the are also some LCD screens that have dead pixels. This is something that usually can’t be fixed. I have found a great program for testing if LCD screens have dead pixels, so you can test the LCD screen you want to buy for dead pixels, even before buying the LCD screen. This piece of software is called DPT – Dead Pixel Tester.
Description from Dataproductservices.com/dpt, the author:
Dead Pixel Tester, with display tests. NEW VER 2.30 – TFT screens have thousands of pixels, on a 1024×768 monitor, there are three cells for each pixel – one each for red, green, and blue – which amounts to nearly 2.4 million cells (1024x768x 3 = 2,359,296). There’s only a slim chance that all of these will be perfect; more likely, some will be stuck on (creating a “bright” defect) or dead (resulting in a “dark” defect). DPT was written to help me check my own screens (Couldn’t find one that worked across multiple desktops so had to write my own!) by cycling through the three primary colours used (red,green,blue) and all on (white) and all off (black).