Reverse the scrolling in Lion
If you don't like the "backwards" scrolling in OS X Lion, you can reverse it. In System Preferences, select Trackpad, and then under the "Scroll & Zoom" tab, unclick the checkbox that says "Scroll direction: natural."
Mac Tip
To force quit an application that isn't responding, click Option-Command-Escape and then choose the application from the pop-up window.
Read more
Read more