Using the Scroll Bar

  A scroll bar lets you see text that cannot fit in one window
  region.

  The triangles at the extreme top and bottom of the scroll
  bar are top and bottom stepper buttons.  Clicking on these
  buttons scrolls the window to the next drawer or folder in the
  direction indicated.

  The arrows at the top and bottom of the scroll region (the
  inner arrows) move through the text one line at a time.

  To move through larger amounts of text, use the slider in the
  center of the scroll bar.  Double click on an additional topic
  listed below for more information about using the slider.

  Additional topics:

  *   Using the Slider in the Scroll Bar

  *   Overview of Mail