Hi, I bought the 70-200VR along with a D2x 9 month ago. I had problems with both in the beginning. The D2x was replaced from Nikon and on the 70-200VR 3 parts have been replaced. The D2x works perfect, especially after the firmware upgrade. I thought that the 70-200VR was working fine too but the problem was that I had no time using it over the last months on objects which were far away. On close distances I have no problems with it but on far distances. Let say more than 10-15 meters I have very inconsisten focusing results. Sometimes the focus is spot on but mostly I have back focusing issues. No other of my lenses has any problems with my D2x...What I don't understand is that I have this issue not always. The additional problem is that I live since 3 month now in Germany and I am not sure if they will fix it because I bought it in the US. I can post some test pictures if requested. I used several focusing charts but these are mostly for short distances and on short distances (1-6 meters) the focus is spot on... I am thinking about selling it since I use mostly primes. I bought it because I was shooting a lot of Horse Jumping Tournaments and needed a zoom lens.