The thing is, I've owned the car for over a year and had no problems starting it until recently. I do appreciate that the Selespeed takes a bit longer to get itself ready. The pump runs for maybe 10 seconds when I open the door.
I just went out and followed exactly what you've described SEARs (it's the procedure I usually follow when starting the car anyhow) and when the "check active" message went off, all visual displays went off and the internal fan stopped. I then removed the key and started again, same thing happened. I then tried again and the car started - at no point did i press the brake pedal - although I did leave it in neutral. I just don't get it.
Yesterday, I got in and didn't wait for the checks to complete and the car started straight away. As I mentioned before, what often happens is that after the checks have finished, I press the brake and all power goes off. Pressing the brake definitely causes the power to go off, but it also goes off if I leave the brake alone.
It's baffling, but appears to be an electrical type problem, so maybe if I get a new battery it'll disappear. Don't really need that extra expense but once it's done at least that can be ruled out I guess.
Cheers for the advice so far; any more is very welcome!