>Bingo.. As I remove my combo box.
>There Is No Error Message!!!
>
>However, After I re-write the combo box'rowsoure..
>e.g ThisForm.cmbPayment.rowsource ="payment.code,name"
>
>It prompt another error ' Alias "payment" cannot find'
>It seems. close all the tables !! How can restore it ???
>
>Thanks In Advance.


your table needs to be open (with alias established) before you set
the rowsource (or at least before you refresh or activate the form
that refers to the rowsource).