It flashed up for less than a tenth of a second, but the damage was done and the reaction instant.
As the South African state prosecutor asked for picture 162 to be displayed on the evidence screens, the computer had to zip through more than 100 images of the scene at Oscar Pistorius' house on Valentine's Day to get there.
One of the screens is just about a metre in front of the face of the athlete in the witness box, and as a picture flashed of Reeva Steenkamp's face in close up after death, the accused was instantly and loudly sick on the floor.
A green bucket was hurriedly fetched, but it was too late. Later, Pistorius' screen was turned off.
On day nine of the Olympian's trial for the murder of his girlfriend, Colonel Giliam Schoombie van Rensburg, the first police officer to arrive at the apartment, guided the court through a long series of images of the scene at the athlete's house.