To turn this behavior off:
- Hold down control and command while moving the line (works while keys are held down)
- Select View Menu > Snap to remove the check mark in the menu and turn this behavior off permanently
Current information from TeachTech Inc. on problems, solutions, and questions... Check the dates to make sure that the advice you are reading is up to date! Call me if you need more info. From time to time you may see some rants/ramblings/notes on digital photography issues here as well.