Thanks for the quick reply. Pretty sure I'd done it that way, but with your suggestion went through and saved again cleanly in the correct order to be absolutely sure. Re-saved the Country default first (USA) and then the State with a default of Alabama.
But alas, no love in the zone. Still looks the same way - no actual dropdown shows up, just the label.
Interestingly if I turn on the option to add a "Please Select" choice to State, the field disappears entirely from the page.
To rule out a template conflict I temporarily switched over to one of the Joomla standard templates, but same result. Country shows, state doesn't.
Could I get you to take a quick look at the dev site to help debug this?