With Lion, Apple has tried to make PC a big tablet, and this is felt the most when you are scrolling. Natural way of scrolling is good with tablets as they have only touch based interface but with computers mouse is yet to be history, and it does not seems like it is going away very soon.
However you can turn off this feature by checking off the Scroll direction: natural check-box in Trackpad settings:
or “Move content in the direction of finger …” check box in Mouse settings:
- Poll: Lion’s “natural scrolling” vs. “reverse scrolling” (tuaw.com)
- Mac OS X Lion wants to reverse how you scroll – and we don’t like it (digitaltrends.com)
- Natural Scrolling Vs. Reverse Scrolling – Which Do You Prefer? (johnchow.com)