When you choose Change on the Database menu, the program prompts you to select a new database. If the component is able to open the new database, then the current database is reset for the new selection. If the component is unable to connect to the new database, you remain connected to the original database. If you have upgraded your software since the database was first saved, you are prompted to upgrade the database as well. Since this process is irreversible, you should save a backup copy if you anticipate continuing to run the earlier version of the software.