Pixel problems

Just noticed my laptop screen has developed two very light pixels near the bottom right hand corner. They're not black, so they're not dead. And they don't remain one colour, as in stuck pixels, so I really don't know what's going on. They're just a noticeable few shades lighter than surrounding pixels, and more visible with light colours. They're not too intrusive, but the fact that I know they're there is really bugging me. The laptop is only three months old, and is a replacement, after the keyboard on the original purchase messed up after two weeks. So that's something that rankles, too. Let's hope no more develop.