Save energy if your computer has an old fashioned CRT monitor. This program blacks out portions of the screen (wallpaper and icons) that are not in use while continuing to display any running programs. It will black out these areas if either the mouse does not move for over 10 seconds or the mouse remains over the active program for over 10 seconds. The blacked out areas return to normal as soon as you move the mouse over these areas, thus allowing you access to the desktop icons at any time. This reduces energy use with CRT screens, because light areas require more energy to maintain than dark areas. Note that this is not true of modern LCD monitors, where dark areas may actually require a MORE energy to display than light areas. CRT Energy Saver should therefore NOT be used with LCD monitors. Once installed, CRT Energy Saver will run automatically when you run Windows. You will simply find that the background of your screen will go dark when it is not in use (you are not clicking on icons). A small icon for CRT Energy Saver will appear on the system tray while it is running. This icon looks like a computer monitor. If you click on this icon, a window will appear asking you if you want to exit CRT Energy Saver. If you click on the Yes button, CRT Energy Saver will shut down until you reboot Windows. Please also note that CRT Energy Saver does not replace or interfere with products that cause your computer and/or monitor to hibernate or go to standby after periods of inactivity. You should still use these products if possible in addition to CRT Energy Saver. CRT Energy Saver simply saves a little more energy while the monitor is in use, and during the period before your monitor goes into standby. (Maximum energy savings occur when all programs are minimized.) Also please note that replacing your CRT monitor with an energy efficient LCD monitor would still save you more energy than using a CRT monitor with CRT Energy Saver. This program is completely free.