Use of the dialog boxes is quite simple. Your arrow keys and the tab key should move you around intuitively. If you are presented with a menu of items from which you are supposed to select one, move the highlight bar over the item you wish to select, and press enter. If you are presented with a list of items and you are supposed to select any number of items (a checklist) move the hightlight bar and press the space bar to toggle selection of individual items. Press Enter when you are done selecting items.