I am trying to enable scavenging of stale records on my domain controller dns servers. However, inevitably the scavenging process deletes _msdcs dns entries, for instance. If I go into the record under the _msdcs section, uncheck the box "delete this record when it becomes stale" and save it, a few hours later, it is checked again. Then when the scavenging cycle starts, it deletes these important records and as you can imagine there are problems.
Any suggestions?