Dell P2310H Monitor - Manual (Page 23)

OSD Warning Messages
LCD
Conditioning Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run.
You can enable this feature by selecting "Enable".
Factory Res
et Reset all OSD settings to the factory preset values.
Personalize User can select from "Preset Modes", "Brightness/Contrast", "Auto Adjust", "Input Source", "Energy Modes" and set as shortcut key.
NOTE: This monitor has a built-in feature to automatically calibrate the brightness to compensate for CCFL aging.
When Dynamic Contrast Feature is enabled (in these modes: Game, Movie, Sport and Nature),the manual brightness adjustment is disabled.
When the monitor does not support a particular resolution mode you will see the following message: