If a large red X appears on the monitor when you view a surface, color may not be correct. The red X can be disabled through PressProof preferences.
Press the spacebar to go to Window mode.
Look for color target and monitor calibration information at the bottom of the left pane. Example of warning messages include:
Color target: none- The surface does not have an assigned color target.
Monitor: uncalibrated-The monitor calibration has expired and it must be successfully calibrated.
Pages on surface have inconsistent color targets-Different targets are assigned to different pages on the surface.
Clear the check box beside Display red X over image when color may not be correct.
Note: If you disable the red X, a small version of it appears in the upper left corner of the screen, and blinks continuously.
You cannot disable this icon except by restoring the red X that covers the entire screen.