Hi Ronnie,
Maybe the client is not capable of using un-keyed fields. Have you verified what you are doing is valid using the you DB SQL tool?
If you show SQL after you add the link in CR designer do you see its reference?
If you do copy the SQL and create a new report and connect and then use a Command and paste it the SQL. Does that work?
What database are you using and how are you connecting? Have you tried using ODBC or OLE DB or Native? Could be a problem with the client....
You need to do more testing...
Don