I have a Mac Book Retrina Pro. My mouse seems to drift to the right of screen all by itself. It doesn't matter if I am using the track pad, a bluetooth mouse or a USB external mouse (or no mouse at all).
It makes it very hard to scroll using the scroll bar arrows, because the mouse drifts while clicking.
How can I fix this?
I have searched on Google, but all the threads are from 2011. The consensus was then it was a software issue, but of course the OS is different now (I am using 10.11.2)