>I built the list for a combo box using the additem method. I can query the list and see the values for the list. But no list is displayed when the control gets focus. I chose 0 for row source type. Am I missing something? TIA.

A combo box doesn't drop down a list when it gets focus. You've to put some code in the GotFocus()

* Combobox GotFocus()
KEYBOARD "{F4}" PLAIN CLEAR
* or
KEYBOARD "{alt+dnarrow}" PLAIN CLEAR