I swapped my18-200 VR from my D40 and put it on my D70 today, taking my 18-70 from the D70 and putting it on the D40.
I then went to shoot the D70 with the 18-200 and… no autofocus. So I checked every possible switch on the lens and checked the settings on the D70 and nothing was wrong. I cycled the switches on the 18-200 and reseated the 18-200, no improvement. I put the 18-200 back on my D40, still no autofocus. Shit.
Where’s my local Nikon dealer located?
Here are some links about autofocus problems with this lens.