Hi! I have a table called tParameters that contains the parameters of the system. It contains only 1 record and the data can be modified with a form. Now I need to use the content of this table in a query to update other tables with a form. The query works and outputs the desired results but the problem is that no data can be modified. If I remove the table tParameters from the query, everything works and I can modify the data in the other tables used in the query. Any idea what I could do? Thanks a lot!