I have a 52 plate 2.2 SRi diesel, when i turn ignition on and start the car none of the dials register for about 15 secs ....ignition lights all ok !

When i do start car tho i can see the info display 'pulsing' and if lights are on they do it too for about 30 secs then all is oK

When i switch off the speedo needle flickers for a short time then stops

Any of you guys seen or got this 'feature' in your Vectra?