1. From the Messages application menu, choose Uninstall Messages Beta….
2. A dialog will appear, asking you to confirm uninstallation of Messages Beta and reinstallation of iChat. Verify that you wish to do this.
3. Restart your Mac when prompted.
Apple sees a fundamental difference between software for the keyboard-and-mouse-pointer Mac and that for the touchscreen iPad. Mountain Lion is not a step towards a single OS that powers both the Mac and iPad, but rather another in a series of steps toward defining a set of shared concepts, styles, and principles between two fundamentally distinct OSes.
Dictionary apps aren’t sexy. Even Apple’s Mac app “Dictionary” doesn’t get stage time during press events. Yet, Dictionary is among the top reasons to buy Mac OS X Lion.
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