Raphael -
Thanks for your thought.
The listbox is being completely repopulated via code with each change starting with THIS.CLEAR. There is no direct link to a table. It then iterates through a series of tables (including the one just updated) to extract the values that are used to repopulate the list. So, I don't think the display value has anything to do with it.


>>I find that the value displayed in the listbox is always one cycle (one change) behind the value set by the optiongroup. I've concluded (I think) that the listbox refresh triggered by the optiongroup's interactivechange is firing before the new value is saved into the table. I've tried fixing the problem by moving the listbox refresh call to the optiongroup's valid event but the same problem is apparent.
>>
>It might be the listbox.displayValue is not being updated to reflect the listbox.value