19" LCD Color Monitor Dell 1908FPC95Power Button and IndicatorUse the power button to turn the monitor on and off.The green light indicates the monitor is on and fully functional. Anamber light indicates power save mode.3.3 Adjusting the PictureIconMenu andSubmenus DescriptionExit Select to exit the Main menu.Brightness/ContrastBrightness adjusts the luminance of the backlight.Adjust Brightness first, then adjust Contrast only if further adjustment is necessary.Push the + button to increase luminance and push the - button to decreaseluminance (min 0 ~ max 100).Contrast adjusts the degree of difference between darkness and lightness on themonitor screen.Push the + button to increase the contrast and push the - button to decrease thecontrast (min 0 ~ max 100).Positioning:HorizontalVerticalPositioning moves the viewing area around on the monitor screen.When making changes to either the Horizontal or Vertical settings, no changesoccur to the size of the viewing area. The image shifts in response to yourselection.Minimum is 0 (-) and maximum is 100 (+).NOTE: When using DVI source, the Positioning option is not available.