David Di Franco


HOW TO: Disable Inertial (Momentum) Scrolling in Mac OS X Lion

Many users seem to be concerned about reverse scrolling in Apple's newest operating system release, Mac OS X Lion. It's a new way of scrolling that I believe takes some getting used to. Personally, I'm sticking with the classic method for now.

There is yet another significant change in scrolling that you may have noticed, and that is scrolling with inertia. If you have used an iPhone, iPod touch or iPad, then you're already familiar with how this works. Scrolling with inertia enables windows to move more fluently, rather than stopping in place as soon as you lift your finger.

If you're not a fan of this feature, then you can disable it very easily. To do so, follow these steps:

  1. Open System Preferences
  2. Click "Universal Access"
  3. Select the "Mouse" tab
  4. Click "Mouse Options..."
  5. Select your option from the drop-down menu next to "Scrolling"

Voila! Inertial scrolling is disabled. I've actually noticed a little performance boost since doing this, especially since my Mac Pro is a 2006 model. Give it a try!