Hi tech support,
Looking at the other files that do get the famous "Retrieve" option I noted APGLBATCH.xxx.
The file had 0 bytes so, I renamed PMGLBTCH.xxx to APGLBTCH.xxx and lo and behold - the file appeared as an AP version 6.5 file...
What is the mechanism that is used to tell Ledger what files to look for?
Cheers, JK