Dan,

Combo box A (rowsource = select item #, supplier_category from item into cursor A)

Combo box B (rowsource = select supplier name from suppllier where category = A.supplier_category [or some form of THISFORM.cboItem.Listitem...])

I set the rowsource in the Gotfocus event of combo box B. I could use a parametized view as the rowsource and requery there. I didn't know which would be the best way to do it. Thanks for the help.

John