I have a problem with my 18-200 AF-S DX VR - the original model, not the updated one.
When I switch the camera (D200) on, the lens creates four consecutive audible clunks, about half a second apart. In the viewfinder, the image shifts up when I switch on the camera, then shifts down at each clunk (shifting up immediately after each of the first three clunks).
I guess this is the VR at fault. The clunking happens when the VR is both on and off.
I have also noticed the occasional single clunk, but can't reproduce it.
This problem started a week or so ago. The VR and autofocus seem to work OK. Anyone else had this problem or any suggestions?