Thanks for the advice David
Twood appear I'm still @ the stage of typing with fists..........
Yet wait ...I've just gone to incomplete d/loads in the Library & 'resumed' a 6 day old search for Logic Platinum 6 OSX.sit. It reappeared within the Search list & proceeded to d/load 8% before reverting to C/N/D/load Await...etc.
I often leave things to reconnect & d/load to completion with varying degrees of failure.
I just disconnected/ reconnected to check Logic's current status- 'Waiting -- s for 1 busy'
The remainder in my search list still 'await sources'
Update: after 4hrs Logic now sits @ 12%