Thanks for your input,
Both front-ends are opened in shared mode (exclusive is unchecked),
otherwise the behaviours would be the same when I start 2003 first!
It is that 2.0 layout the header page of the back-end mdb in a way
that is interpreted by 2003 as the database is being locked/in use.
>> Stay informed about: Could not use ABC.mdb; file already in use.