Can you help please, for the last three mornings I've pushed the button on the case, as Ialways do, & it dies, it's done this in the past occasionly, then, I would press it again straight away, & it was OK, now, I have to go away for ten minutes, brush my teeth etc, try again & it works.
the room is at a constant even temperature, not too hot/cold, no dampness, & my desktop is in the same place as it's always been.