Before you can view color-accurate surfaces, your color monitor or monitors must be successfully calibrated. Monitor calibration must be done to ensure accurate color viewing.
When calibration finishes successfully, Status: Calibrated appears at the bottom of the left pane when you view a surface in Window mode. The date and time at which the calibration expires is also listed.
For more information, see the Calibrating the color monitors section in the PressProof Quick Start Guide.