If your mouse has a wheel, you can scroll up or down by turning it.

■    In many programs you can press Ctrl+Home and Ctrl+End to go to a document’s beginning or end. If yours won’t, the fastest way to scroll is to drag the scroll box to the top or bottom of the scroll bar.

■    In Windows Explorer, Internet Explorer, Notepad, and some other programs, you can right-click anywhere on a scroll bar to show a navigation shortcut menu .

■    Holding down the mouse button on a scroll arrow or shaft autorepeats the scrolling behavior. (If you lean on the shaft for more than a few seconds, Windows can lose track of video memory, and the window contents will appear distorted or sliced up before Windows recovers.)

■    You can use the mysterious Scroll Lock key for keyboard scrolling. When Scroll Lock is toggled on (its keyboard indica– tor is lit) and you press a navigation key, some programs scroll the view without affecting the cursor or selection.