@cindex balloon help
When a region of text is ``active,'' so that you can select it with
the mouse or a key like @kbd{RET}, it often has associated help text.
-Areas of the mode line are examples. On most window systems, the help
+Areas of the mode line are examples. On graphical displays, the help
text is displayed as a ``tooltip'' (sometimes known as ``balloon
help''), when you move the mouse over the active text. @xref{Tooltips}.
On some systems, it is shown in the echo area. On text-only