Could of been a bulb out warning, the Mk2 does have this functionality for the driver info screen to point out which bulb is either out or defective on the car. It usually points out where to look on the car graphic, but will also throw up some warning information too
If it's not there now then it's something intermittent possibly a dodgy bulb about to go or a bad connection. See how you go if it happens again pop it into the dealers for a diagnostic.
However another thing that comes to mind is if it was simply a glitch on the screen, it could be that the LCD was cold, and took a second to kick into life properly. I have seen it happen on LCD monitors when they get very cold. The liquid can essential freeze in the screen so it won't move right away, the electrical signals warm the LCD cells up and it takes a couple of seconds to move and the glitch is the delay you see.