My new Nikon D 7100 has dust or dirt all over it and there are streak running at an angle from left corner to right. I used my visible dust Arctic butterfly on it but didn't take the streaks off only most of the dust.Should I send this back to B&H? Does anybody have this going on? The same thing happened to my Nikon D 600. Makes me want to pull all my hair out. Getting real sick of Nikon real fast. Spend all this money for what!