Just an update, it looks like the DNs needed to be added to the MCG; so I did that and rebooted the system and all seems to be in order...

So of course the next issue is how / why did this happen? David, you mentioned about the changes to the system not be backed-up to the SD card...

That seems like a plausible reason. I suspect that the battery unit for the system must not be holding either (or there was an extended power outage that nobody is really aware of), so I suspect the first course of action is to back-up to the SD and look at replacing the HPFB6 unit.

Any other suggestions? While we are at it, if this is the cause, what other programming items may have gone the way of the dodo?

Thanks for all your assistance.

Cheers

John