>I have a piece of SQL which populates a listbox with usernames. I want to use a combo which adds additional usernames so when the user saves the form the usernames will update a table. The problem I have is that I populate the listbox when the form initialises but when I select a user from my combo and click add it does not add the user to the listbox even when I refresh. Can anybody help me please?

The usual trick for this is

this.requery()

in the listbox.refresh.