Using the shortcut for duplicate (Control + D) is causing my camera to move to the right. I happened to have the movement speed up high at 50 and it was really shifting on me. It was still noticeable when i changed the speed to 1. Happened in Top View, walk, and free navigation mode.
I tried a different keyboard, same problem.
I rebound duplicate to a different key, and the problem stopped. but im programmed for control D.