Binding, yes. Synchronizing, you really need code, but it's one simple line:
If the listbox is in the main form and you are syncing a subform:
Sub lstBoxName_AfterUpdate()
Me.NameOfSubform.Requery
End Sub
Use a query as the RecordSource for the subform. Take the field in the query
that you want to sync and use the criteria box to Build a criteria:
[Forms]![FormName]![ListboxName]
I have a sample using mulitple list boxes at the AccessMVP.com website:
http://www.accessmvp.com/Arvin/Combo.zip
--
Arvin Meyer, MCP, MVP
Microsoft Access
Free Access downloads
http://www.datastrat.com
http://www.mvps.org/access