The striker pin fell off when I opened the boot yesterday and the nut that holds it has gone missing. Boot's now secured by duck tape until I can get to the dealer.
If you've an S2 Exige I'd recommend checking that the pin is tight.
Yeah, after it happened on the S1 I checked the pin regularly but the S2 Elise lulled me into a false sense of security. Maybe I should start greasing the boot release cable again