I have a form with a subform where one field (Empl ID) is linked using a combo box (form) to a textbox (subform). Empl ID is an autonumber filed in the employer table and a number field in the main table. Originally the subform worked fine and was not being used for data entry but I now need to do it that way. I thought it would be simple enough but when I try to enter a record into the subform I get an error message - You can't assign a value to this object. Any ideas? Thanks!