Hi,
The backup is scheduled daily, using the Backup Database Task from the SQL Management Studio. I've no reason to believe it isn't working (the schedule backs up a few other SQL databases at the same time and they're all OK).
As suggested, I've run a manual backup from the SQL Management Studio, then attempted to shrink the Database (not Files), and the allocated space is now 75,686.56MB! Yikes !
Is there a way to completely remove the MDM settings/database and start over?
Cheers
Neil