So, I haven't played in a while, and I would normally just hold right-click to change the camera angle by moving my mouse round.

Now, when I just right-click once, it will change the angle from where I clicked, while before it didn't do this.

Is there any way to fix/change this? It is making it nearly unplayable.

Update: Only does it in fullscreen, but I want to play in fullscreen >.<