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If you’re a hands-on sort of nerd, you can also force this screen to open on your command. (To open System Preferences, choose its name from the a menu or click the gear icon on the Dock) Here’s a rundown of the most useful Apple menulets, complete with instructions on where to find the magic on/off checkbox for each. 576 switching to the mac: the missing manual Audio is especially important when the Mac tries to get your attention by beeping. Double-click a picture in a book to zoom in on it. Select the fake text and type over it with what you really want to say. Choose EditÆFindÆ Find (or press c-F) to bring up the Find dialog box (Figure 11-13). It’s also useful if you want to replace the original file with the new one you’re saving. At this point, Apple steps back and Microsoft takes charge; the usual Windows installation process gets under way. You can replace the actual, mundane background of your office or den with something far more exciting: a rushing waterfall, for example, or a rider’s-eye view of a roller coaster. The chirp came from a thick holly bush, bright with scarlet berries, and Mary thought she knew whose it was. Well, that list is now extensible. The program understands TIFF, PICT, JPEG, and GIF formats. Extensions (Figure 17-13) can modify four parts of the Mac: Figure 17-13: Once you click the category name, you can operate on the individual extensions listed within. There’s also a “Change profile picture” command (to make this photo represent you on the Login screen), and a More button that opens the System PreferencesÆ Extensions screen described on page 596. It's such a soft song. (Mnemonic: E = End) Control-D. (The WindowÆZoom command does the same thing, and so does double-clicking the title bar of a Finder window) If you would prefer that older behavior, just press the Option key as you click. Like Mrs Medlock, he did not understand what his father meant when he said hurriedly. FaceTime If you have a Mac laptop or iMac, then it’s got a built-in microphone and camera. It’s called Font Book (Figure 9-7), and it’s in your Applications folder.