I've got it so that when you select Peter Cushing you get his email address in the box. Same with the other data
1) Change the "querytosetemailaddressandnametogether" to include PersonnelID as the 3rd column. Rename the query as qryemailaddress
2) Remove the controlsource that you had for the combobox. You don't need it.
3) Change the rowsource to just be qryemailaddress from the drop down
3) add this code in the after_update event of cboFullname
Code:
Me.Filter = "[personnelID] = " & Me.cboFullname.Column(2)
Me.FilterOn = True
Let me know!!!