72Setting Options DescriptionInstallation Keystone Adjusts image shape torectangular (horizontally andvertically)H/V Keystone: lets you manuallycorrect horizontal and verticalsidesQuick Corner: select to correctimage shape and alignmentusing an on-screen displayZoom Adjusts the image sizeProjection Selects the way the projectorfaces the screenOSD Rotation Rotates the menu display 90°High Altitude Mode Regulates the projector'soperating temperature ataltitudes above 4921 feet (1500m)