>Hi!
>
>
>I just deepening myself in VPF. Trying to make an application.
>I tried to set up the referential intr. of my table.
>
>VPF says i must run "Clean Up Database". But this menu option is disabled.
>
>Can sombody give me a clue what i can do about it?
>
>Greetings
>
>Harry O

Harry,

Make sure all tables are closed and also ensure that the database was opened exclusively.