AutoFormat does nothing until you manually start it. You can add a button
for that to the Quick Access Toolbar (find the AutoFormatNow command in the
Commands Not In the Ribbon category in the Customize dialog). I see it
assigned to the shortcut Ctrl+Alt+K, but I'm not sure whether that's a
default assignment or one that I made.
AutoFormat As You Type is exactly that -- the changes occur as soon as Word
recognizes something you typed as being of the right kind.
And I agree, the Word 2007 help is more poorly organized, or at least more
poorly indexed, than in previous versions. That has been a trend through the
last few releases.
--
Regards,
Jay Freedman
Microsoft Word MVP
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