I have an unbound combo on a subform which I use to look up Product Types from a table and subsequently use as a criteria to filter Product Names in the next Combo (this Combo has a control source in the subform's source query). Inputing new records works fine, the ID is keyed into the underlying table. When I return to a previous record the Product Type Combo is not updated (hence neither is the Product Name Combo). How do I get an unbound Combo to remember/display the value?