Mouselook pans counterclockwise

When I am in third person mode, my av and camera view is completely stationary.
When I enter mouselook, the screen pans to the left, slowly and smoothly (automatically).

Outside of SL, my mouse does not do anything strange. I've cleared cache, removed all attachments, restarted, reinstalled secondlife, updated mouse drivers (Logitech Optical mouseman).

Never had a problem with mouseview and second life until this afternoon when suddenly it started panning.

Spoke with some people and apparently others are having this same problem, though their camera may pan in a different direction.

Mine does the same, except it pans top-right. It is very annoying when trying to aim.

Hey, I found an answer for me, dealing with UI scaling. /142/06/124664/1.html