Hi David
Thanks for the reply.
Firstly, all cables are secure. Here's some more info...
Our box is (obviously) usually left on STANDBY (red light). It is never OFF.
Occasionally I notice first thing in the morning that it is ON (white light).
I assumed that this was the result of updates being done, maybe I'm wrong.
If I leave the box alone, it eventually turns itself back to STANDBY presumably as the result of the Eco Low Power mode 4 hour timer.
If instead I manually turn the box off straight away, this is what seems to cause the "recordings missing" problem later on. Have I interrupted the update process? Obviously I have stopped doing this and so far the problem has not recurred.
Thanks for all your help...
Bill