I recently started playing SC2 again and encountered this extremely annoying bug which pretty much makes the game unplayable for me. I’d like the cursor to stay exactly on the point where I started to drag scroll instead of it moving along with the screen. But the cursor jumps to different places every time during the drag scroll, it doesn’t stay stationary in reference to the world or the screen. The jumps seem to follow a pattern (not random). I tried windowed w and w/o full screen and proper fullscreen and in all modes the pointer jumps to a different place after releasing the key to drag scroll, some times outside the game window.
did you get anywhere ? I had similar but my problem is the mouse sticking to edge of screen if i go near it! very painfull to deal with as it just scrolls to edge of mini-map while i die !! lol