I hope this is not a repaet - I seem to have been unsuccessful in a previous post............ I have a Nikon D50 that works fine with an AFS 18-70mm lens and older AIS lenses (on manual). My older AF lenses (60mm micro and 70- 210mm) no longer seem to communicate with the camera - I get a FEE message and nothing works. They did work last week. Any ideas? I did reset the camera to its default settings but it did not solve the problem. Thanks.