Showing (or Hiding) Indicator Lights on the Dock

In previous versions of Mac OS X, a tiny blue dot would appear underneath the icon of every program on the Dock that was currently running. In Mac OS X 10.7 Lion, you now have a choice of turning these indicator lights on or off.

To turn indicator lights on or off, do this:

  1. Click the Apple menu and choose System Preferences. The System Preferences window appears.

  2. Click the Dock icon under the Personal category. The Dock window appears (see Figure 5-2).

  3. Select (or clear) the Show indicator lights for open applications checkbox.

  4. Click the close button of the Dock window to make it disappear.

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