Cool - thank you everyone for your input.
It's going in on friday afternoon for Desira, Southgate to take a look.
They said they've had a few microswitches fail which is part of the boot lock.
Anyways they said they'd fix it for me for no charge - trouble is I'm kind of friendly with them all there so I'm not sure if it's covered or they're doing me a favor.
I'll post the outcome soon.