Nikon Europe has released a firmware update for the V1 today. So far it is not available on the US site. The update description is: "Immediately after the camera was turned on after attaching a lens, shooting display in the camera monitor or electronic viewfinder (view through the lens) sometimes appeared to move. This issue has been resolved."
Link: http://bit.ly/XTwKGc
Link: http://bit.ly/XTwKGc