MacBook Pro :: Grey Spots Around Edges Of Screen?

The first week I had my Macbook Pro I noticed about 5 or 6 little grey splotches on the right hand edge of the screen. About a month later tons of them had formed on the top edge in a cluster. I didn't take my computer in because it wasn't that noticable, only at an angle. Well it's been 9 months, and there's now spots on the left hand side, and it's spreading. A week ago they started to appear on the bottom on the screen, and all the spots on all the other edges are forming rings around them.

I took it to my tech at our school since they sold us the laptops, and he said the spots were too small for water damage, and that he's never seen anything like it before. So I took it into the apple store THINKING they would replace it, instead they told me it had to be water damage and that was that. I've never spilled anything on this computer, and the spots started the week I got it. No matter how many times i explained the situation to those people, they just kept repeating "I'm not saying that you're lying, but we dont know what was actually done to the computer, we say it's water damage, which isn't covered" and refused to fix it.

Its just a bunch of little grey dots clustered together, some are a little spread out but as the weeks go by it just gets worse.

I'm not really sure what else to do at this point, the apple store obviously wasnt a big help. And I still have no idea what it is, i just know that this computer is extremely important to my schooling, it doesn't get banged around, i dont even eat around it. Has anyone seen anything like this?