>I have a database with six tables. I am trying to define the relationship between them. For some reason, the relationship lines will not come up. What could be causing this? I have indexes defined for the tables.
Check under the Database menu | Properties and make sure Display | Relations.
The parent table's index being used must be a Primary Key.
The relation is made between indexes, not fields.
HTH
Insanity: Doing the same thing over and over and expecting different results.