Thanks Villeroy, sorry didn’t mention the OS.
So now I can see the data sources in the data source window in the left pane however when I click on one of them (the tables icon) a message appears to say the data doesn’t exist. Anther message that appeared is - "The connection to the external data source could not be established. No SDBC driver was found for the URL ‘’**.
I’m including a screenshot to show you what is happening. Most of the mail lists are in fact all the same it’s my attempt to get one to open by changing the name. My last successful envelope printing was in June this year as you see by one of the names. Some have names deleted or added.












