Thanks for taking the time. The actual process as you may know is simple and the likelihood of what you suggest almost impossible as the camera would have to identify the lenses to start with. I think right now the most frustrating thing is that I simply cannot get help anywhere. Nikon's response was simply, "not our problem, must be Tamron" - quite sickening when you consider what the stuff costs. Anyway I still don't have any further resolution to the problem.