If you hate the fact that in Lion scrolling down pushes new data up, you can set your scrolling preferences to scroll the way you want. Apple calls the Lion default "natural scrolling"; it seems to be inspired by the idea of pushing up a sheet of endless paper to see new text, and pushing (or pulling really) the same sheet down to go backwards, textually.
That said, it seems like after about an hour or so of use, most users stop noticing the new scrolling behavior.
To change scrolling behavior in Lion:
- Go to the Apple menu and open System Preferences .
- Click the Trackpad panel icon.
- Click the Scroll & Zoom tab.
- Un-check the box for Scroll direction: natural.
If you want scroll bars to show all the time, you can turn them back on. To always show scroll bars:
- Open System Preferences.
- Click General.
- In the Show Scroll bars section, click the radio button next to Always.