Hi,
1. Right Click on your form and click Design View.
2. Click on the Combo Box on the Design tab, Controls area of the ribbon.
3. Point to your form in the area you want and click again to put the control on the form.
4. Right click on the combo box you just created and select Properties.
(Note the name of the control in the box)
5. Click the Data tab and select your table from the list as a rowsource
6. Click the Event tab and click in the Ater Update row.
7. Select [Event Procedure] from the list and click the ... to the righ that will allow you to build an event.
8. Enter the code above.
Give it a try.
Bill