Figure 2-12: Check boxes in this dialog box enable you to control the appearance and behavior or the
taskbar.
Although the mouse is the simplest way to turn a check box on or off, you also can do so with the
keyboard. Press Tab or Shift+Tab until the option you want has a gray border around it. Then press the
spacebar to select and deselect the check box.
Sliders
Sliders enable you to adjust a setting along some ruler. For example, the Screen Resolution option on
the Settings tab of the Display Properties dialog box, shown in Figure 2-13, enables you to adjust the
screen resolution by dragging the slider left and right across the bar. If you must use the keyboard, you
need to press the Tab key until the slider control is selected. Then you can use the ‹ and › keys to
move the slider left and right.