Apple Released MAC OS X – Lion yesterday, since it was released most of the complaints are related to the natural scrolling feature. This feature reverses the gestures that we are used to for scrolling up or down the page.

We noticed this as well when we installed Lion yesterday. This feature could be disabled by following the steps below:

1. Click on the Apple Icon on the extreme top-left to go to System Preferences.
2. Go to TrackPad or Mouse Options.
3. Un-Check the box where it states Scroll direction: natural.

and you are good to go.