Originally Posted by Light_Horseman
You should As to it now not working, I would check that the contacts on the mount are clean and inspect the aperture actuator (on the left hand side just inside the mount on the camera) for damage.
Thanks for the idea. I checked contacts and cleaned them with cloth. I also checked the aperture acturator lever. When there is no lens mounted, it sticks out in about half of its hole. When I release the shutter, slides up and back slightly. When I mount the lens, it doesn't work.