Combo Box Update Problems

I have a Flash Movie with two combo boxes and two input fields.

When you select an item from combo box 1, i.e. item 4.

Combo box 2 changes to display item 4 as well.

Input field 1 displays the text from the currently selected item from combo
box 1.

Input field 2 displays the text from the currently selected item from combo
box 2.

When you change combo box 1 to a different item, combo box 2 changes and input
field 1 displays the currently selected item of combo box 1.

The problem I am having is input field 2 doesn't update to reflect whatever is
currently selected in combo box 2.

The problem seems to be within the second combo box's close event and the way
the bindings have been created.

Any assistance is greatly appreciated.

Kind Regards,
Boulent