>>I would take it back to where you bought it and try to >swap >>out that lens. I don't own that one, but what you're >>describing doesn't sound good. > >even if I bought it in a kit with the d7000? swap the whole >package?
No, see if they can just swap the lens.
If they can't, then I guess Nikon is the one to arrange a warranty replacement... In any event, I'd keep the D7000 body you already have.