Why won't my Nikon 28-85mm work with my Nikon D7000?

I have a Nikon 28-85mm lens with aperture ring that I have been using with my Nikon D7000. Two days ago, when I put the lens on the camera, i got the "fEE" sign. I set the aperture ring to F/22 like you're supposed to, but I still keep getting the fEE sign. I cleaned the contacts on the lens and the camera, took it to a store where they cleaned it also, then I reset the camera settings back to factory using the 2 reset buttons. I give up. Anyone know of any ideas?

Yes, that lens should work fine with your 7000. Try the lens on a different camera. If it still doesn't work, the lens is dead.