Hi,

> is there any ways to "prevent" the data gather is not right...

To separate comboboxes on different forms, you can give each form a private datasession by setting the DataSession property to 2. Within a form each combobox should use a different source. If the RowSourceType is SQL statement, make sure you add "INTO CURSOR xxx" to every combobox where "xxx" is a different name for each combobox.