I have a subform with a Combo Box that needs to display a years fields for a particular SSN (selected from another Combo Box). For example my table, training history, has the years 2001 - 2002 - 2003 for all SSNs. SSN 111111111 may only have a history record for 2002 and that's all I want to display in my Combo Box, but I get all the years. I need to lookup the training history record for the SSN on the screen. Training year and SSN are both in the training history table.