Showing underlines for hot-keys in XP

In the documentation we mention that Alt- hot keys are underlined in menus and on dialogs. For instance the "F" is underlined for the File menu item, indicating that you can press Alt-F to go to that menu.  However you may not be able to see these in Windows XP, at least not until you press the Alt key in the first place.

This is a new option in XP to hide the underlines until you press the Alt-key, and in Microsoft's wisdom they seem to have enabled that option by default in some cases (why confuse the user with all those underlines, right?).  So if you don't see any letters underlined in the menu or dialogs then just press the Alt key and the underlines should show up.  You can also disable this option in XP by going into Desktop Properties (right-click on an empty desktop area), click the "Appearance" tab, click the "Effects" button, and uncheck the "Hide underlined letters" option.