Find and Fix Dead Pixels With Your Browser!
Willy Ci has coded it as part of his portfolio, and it's elegantly simple. Pick a color with the palette tool, click go full screen, and your monitor is instantly awash in glorious pixel-hunting color.
Since it's browser-based, it'll run on any platform (as long as Adobe Flash is supported).
Both machines I used for testing had a slight issue escaping from full screen - the chooser didn't reappear, and my mouse pointer vanished. Simply mousing up to the tab bar and right-click reloading the tab solved the problem.
Once you've pinpointed the trouble spots, head over to killdeadpixel.com and see if you can't revive them with their trippy animated gif. Switching to one of the fullscreen modes makes stuck pixels easy to spot by giving you a black background to work with. No guarantees it'll wake them up, but it's worth a shot since most manufacturers won't warranty a screen with fewer than three problematic pixels.