Dell E198WFP User Manual page 21

Time
OSD Lock:
Controls user access to adjustments. When Yes (+) is selected, no user adjustments are allowed. All buttons except the Menu button
are locked.
NOTE:
When the OSD is locked, pressing the menu button takes the user directly to the OSD settings menu, with OSD Lock
OSD Lock
selected. Select No (-) to unlock and allow user access to all applicable settings.
NOTE: You can also lock or unlock the OSD by pushing and holding the Menu button for 15 seconds.
Language Select to have the OSD display in one of five languages (English, French, Spanish, German, or Japanese).
NOTE: The change only affects the OSD. It has no effect on any software running on the computer.
Factory
Resets the OSD menu options to the factory preset values.
Reset