How do I keep the ribbon always visible?

The ribbon is "minimized". There are three ways to "unminimize" it:

• Press Ctrl+F1 (this is an on/off toggle).
• Double-click any of the tabs (Home, View, etc.).
• Right-click any of the tabs or the Quick Access Toolbar and uncheck "Minimize the ribbon". Edit: In Office 2013, there's an additional way. The icon (shown below by the red box) in the top right corner of the window has a dropdown menu. Click Show Tabs and Commands to see the full ribbon. The Auto-hide Ribbon choice is new -- it hides both the tabs and the buttons to give you the most reading/editing space for the document. To show the ribbon temporarily, click once at the top of the window. As soon as you click a button on the ribbon, it will hide again. To turn this off, click the icon and click one of the other two choices.

If you expand the ribbon by any of the methods I listed above, it should stay expanded until you do the reverse of one of those methods. The state should stay unchanged even if you shut down and restart Word or Windows.

If that isn't happening for you, there are a couple of possibilities: There may be an add-in that's improperly changing the ribbon's visibility, or there may be a problem in the registry that prevents the ribbon's state from being saved. Neither of these is very likely.