My pre had 4 stuck pixels and I tried that stuck pixel fix a few others mentioned in other threads and just wanted to report back that it totally worked!!!! Here's exactly what worked for me:
1) Go to YouTube on your phone and search for "How To Remove A Stuck Pixel". It should be the first result. There are a couple of other stuck pixel videos but this one was the best cuz it's almost 3.5 mins long and all the other ones are less than a minute.
2) Play the video over and over (set your screen to stay on for 3 mins or just don't let the screen go dark). The first two times I played it the pixels were still there and I was going to give up, but I played it about 4 more times and VOILA, NO MORE STUCK PIXELS!!! I didn't bother to rub the screen or anything because I don't think that does anything. Unlike an LCD monitor, the pre's screen is behind that plastic multi-touch surface so rubbing's probably useless.
Try it and let everyone know if this solution works for you. It took me 6 video play, it may take you more. Note that this will only fix STUCK pixels, the ones that are white. If you have a DEAD pixel (black) then you're probably out of luck.
I'm ecstatic cuz this is my third pre--first one had screen blotches and dead pixels, second had even worse screen blotches and oreo cookie syndrome--and I didn't want to do another exchange again because this one's build quality was solid, tight and excellent all around. I was going to overlook the stuck pixels but now they're gone, I can say I have the perfect pre! i love love loooove this phone!
