related database / security

[Gregory_I]

I have 1 main contact database and 10 other databases that are all related to it. Certain emplyee/users do not have access to all 11 databases. For Example say I have database "a" the contacts databse, "b" is the appointment database & "c" is the payroll database. If a user has access to database a&b but not c they will sometimes get a promt asking for a user name & passwrd for database c. Is there any way to keep filemaker from offering a promt to a user with no access? Even if the databases are related? I am using server 7 & fmp standard 7. Thanks