I have illustrator 2017 and i'm running into a very annoying problem. While i'm working, the viewport will suddenly enter a dead scroll to the bottom of the document and stop there. I don't even need to touch the computer. It will just derp out and scroll straight down. My mouse is not the reason, or I wouldn't be writing about it here. It does this exclusively in illustrator. It has never done it in Photoshop, Animator or InDesign.