The screen resolution setting determines how much information is displayed on the display screen. It is measured horizontally and vertically in pixels. At lower screen resolutions, such as 640 x 480, fewer items will fit on the screen, but they will be larger. At higher resolutions, such as 1600 x 1200, more items will fit on the screen but they will be smaller. The resolution options will vary with each computer based on the video card device, monitor size, and video & monitor drivers
. If the screen looks distorted or fuzzy, then you may have an incorrect screen resolution size set for your monitor.