Just to update.
We changed our clocks this weekend and when I got to church I switched my laptop on, gave it a few minutes, then shut it down and switched it back on.
When it came time to start my pre-meeting notices, it did not come on when it should and I had to start it manually.
After the service, I shut it down and we had another service in the afternoon, so I switched it back on again and again when it was supposed to start the pre-meeting presentation, it didn't work so had to start it manually.
Hopefully, next Sunday will be more successful.