I've been complaining about this issue since beta as well. THIS NEEDS TO BE FIXED.
I have a logitech G700 mouse and it happens wirelessly or wired. I also would like to turn off mouse acceleration please.
Come on Bioware. PLEASE FIX THIS.
I briefly scanned the posts in this thread and I think someone else had this issue too.
In the beta, I used to also have an issue where once in a while my mouse look camera would feel like it was very "heavy". like the camera had "weight" to it. My camera all of a sudden went from waaay to fast to waaaay to slow. It would take a LOT of mouse movemet to start it moving, and then to stop my camera, I had to counter-turn my camera, like firing retro rockets on a spaceship. I could fix this issue by going into options and changing any key binding, but then the issue would come back randomly later.
It hasn't happened so far, but I am only level 13 and just starting questing on Drommund