Weird "dots" on my Sammy

[JamesKurtovich]

I've got the 50" 720p Samsung Plasma and Blu-rays look amazing. I even did some internet research and found the best video settings possible for this set. But I noticed (when I get close to the screen) that there are small blue-ish gray "dots" all over the picture. Anyone else know what these are? Is it normal for Blu-ray? Or is it something with these plasma sets? You can't really see them if you're at least 5 ft. from the TV but it still bugs me because the picture should be clear. I tweaked the "black" settings and they disappear (my black setting was 0) when the black is +1.