I forgot to post this yesterday. I was cleaning some smudges on my 18-200mm VR (I have a tiffen filter on it). I noticed some dust on the filter that wasn't coming off, it was obviously on the other side. I unscrewed the filter, and found that it was actually behind the glass of the lens. About 4-5 white specks, right in the middle of the lens. Sorry for the lack of pictures, I didn't take any and I'm not at home right now. But is this normal? I looked back at pictures I have taken recently and I don't see any issues with them, so I am thinking its not a big deal, but I know that they weren't there when I bought the lens. Just wondering if I am over reacting or if I should have it taken care of.