This is in Puerto Rico. It's one of the arrival/departure display screens. It's supposed to say something like "Welcome to Puerto Rico", but apparently they were working on the system. However, somebody must have stuck a flash drive in the control computer. The display stayed like this for about five minutes. Then it went back to the welcome sign. Then I got to watch it go through the whole boot process. Not just this display, but every display in the airport showing the same thing.
Eventually they got the displays to show arrival and departure information.