Dell G2410H User Manual page 23

LCD This feature will help reduce minor cases of image retention.
Conditioning
If an image appears to be stuck on the monitor, select LCD Conditioning to help eliminate any image retention. Using the LCD Conditioning feature may take
some time. LCD Conditioning feature cannot remove severe cases of image retention or burn-in.
NOTE:
The below warning message appears once user selects "Enable" LCD Conditioning.
NOTE:
Factory Rese Reset all OSD settings to the factory preset values.
t
Exit Menu
Press
Use LCD Conditioning only when you experience a problem with image retention.
Press any button on the monitor to terminate LCD Conditioning at any time.
to exit the OSD main menu.