Replication Manager 5.2 - Creating New SQL Application Set, No DB's Listed

Brand new Replication Manager v5.2 install. Everything seems to be installed correctly (eg: the RM Config Checker runs without error, except for on the items that we aren't using like Invista, etc). We add the host and add it's storage. Storage is listed in RM and we've added the snapshot stuff through the RM wizard. Now next step is to create the Application Set for our SQL server. I can expand down and browse the SQL server's volumes (including the Clariion volumes where the DB's reside) but not the databases themselves - when I expand the SQL Server "tree level", nothing appears under it, so I can't select the databases.

Any ideas?