I bought a brand new Nikon D5100 with 18-55 VR kit lens. All I did was tilt the camera from a landscape to a portrait position while holding it to take a picture. I experienced a sudden movement/shift in my subject through the viewfinder. For a moment I thought the lens fell off from the body but it didn't. From then on I got the "lens not attached" message. Only 2 weeks since I bought it. Got it exchanged. Will VR cause the lens to fail if the camera is tilted from a horizontal position to a vertical position?