My dad just got my mom one of the new MacBooks and I'm wondering how you turn off the double finger scrolling feature. I used to love that on my macbook but it became a total pain when it would get stuck and not let me start left-clicking. My mom doesn't like it because of this as well. I went to Trackpad in System Properties but it only shows me a video of how to do it, not a checkbox to turn it off. How can I turn it off?