Editing the structure of an Access 2002 database. Created a new table and related this to another in the Relationships window. Closed window and re-opened, only to find that all relationships have disappeared. (This perhaps because it turns out I had accidentally added the table to the window twice.) The relationships appear to still exist in background as they appear, for example, in a new query design window. Any way to make them re-appear in the relationships window? (Compact and Repair does not to this.)

Is this a split database and in the backend?

no. single user only, on an office server hard drive