1. A text entry dialog box system for use with a display device, data input means including pointing means, and processor means for executing an application program, and that displays on a screen of said display device a dialog box into which an associated user enters data during execution of said application program, said text entry dialog box system comprising: a text entry space in a dialog box displayed on said screen of the display device for free-form entry of text items into the system by the associated user; a memory for storing previously entered text items which were previously entered into the text entry space by the associated user; means for selectively displaying a selection button on the screen of the display device in association with the dialog box for selection by the pointing means, the selection button being displayed solely when the memory contains at least one previously entered text item; and means for displaying a list of the previously entered text items stored in the memory responsive to selection of the selection button by the associated user.