Dell G2410 appendix Contrast, Exit Menu, Auto, Adjust, Input Source

Contrast	Adjust Brightness first, and then adjust Contrast only if further adjustment is necessary.
	Press the	button to increase contrast and Press the	button to decrease contrast (min 0 ~ max 100).
	The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.
Exit Menu	Press	to exit the OSD main menu.
AUTO	Even though your computer recognizes your monitor on startup, the Auto Adjustment function optimizes the display settings for use
ADJUST

Auto Adjustment allows the monitor to self-adjust to the incoming video signal. After using Auto Adjustment, you can further tune you Clock and Phase controls under Displays Settings.The following dialog appears on a black screen as the monitor automatically adjust

NOTE: In most cases, Auto Adjust produces the best image for your configuration.

NOTE: AUTO ADJUST option is only available when you are using the analog (VGA) connector.

INPUT SOURCE

Use the INPUT SOURCE menu to select between different video signals that may be connected to your monitor.