Editor: The SwitchDisplay application was designed to be a free utility lets you switch screen modes (resolution, color depth and Frequency) , simply toggle Between them use mouse click or HotKey. It's very useful when you occasionally switch between vary screen modes.
For example, you mostly use LCD with 1024x768, 32-bit, 75Hz mode, but sometimes you need use Projector with 800x600, 16-bit, 60Hz.