Sorry to report this but I am still getting unintended hud arrow movement in combat. it appears to happen if I move the hud to the left side of the screen (top, middle or bottom). Will do a complete reset of ui and install the latest Dev to test again.
Regards
Thrumbar
Edit: The movement appears to happen if I move the hud anywhere on the left/right side of the screen. This regardless of whether I am changing quest to watch (changing only causes it to change directions and speed).
http://youtu.be/pL5_s8xVT9s