SpruceBoi

Hey, I was having this problem too. I know this isnt ideal but I was able to turn on "mouse keys" on windows which lets you control the cursor with the mouse pad. (Explained here --> https://mcmw.abilitynet.org.uk/using-your-keyboard-to-control-the-mouse-windows-8-1). If you click with the mouse and control the cursor with the keyboard you get perfectly straight lines.