645. Using On-Screen Menu Menu Descriptions & Functions [SETUP][GENERAL]Correcting Vertical Keystone Distortion Manually [KEYSTONE]You can correct vertical distortion manually. (→ page 26)TIP: When this option is highlighted, pressing the ENTER button will display its slide bar for adjustment.Saving Vertical Keystone Correction [KEYSTONE SAVE]This option enables you to save your current keystone settings.OFF ........................ Does not save current keystone correction settings. It will return your keystone correction settings to“zero”.ON ......................... Saves current keystone correction settingsSaving your change once affects all sources. The changes are saved when the projector is turned off.Using the Wall Color Correction [WALL COLOR]This function allows for quick adaptive color correction in applications where the screen material is not white.NOTE:• Selecting color options other than [OFF] will reduce brightness.• When the 3D mode is enabled, the [WALL COLOR] item is not available.