Your problem is probably related to the combo's being in a toolbar. Toolbars never get focus like forms do, so they behave differently with the focus navigation keys.
>I have some combobox's in a container, and I've put that container in a toolbar.
>
>The problems I seem to be having are 1) The incremental search doesnt seem to work. 2) When I hit the TAB key the focus doesn't advance to the next control.
>What's really strange is that if I put this container in a form instead of a toolbar all seems to work just fine. Anyone have any ideas?