Thanks very much for your reply.

I'm not particularly skilled in phpMyAdmin or any programming but am learning as I go. I checked the phpMyAdmin area under 'countries' and all appear to still be present. In admin, I can see that all countries are still listed under LOCATIONS/TAXES, then COUNTRIES link.

I suppose it may be a matter of changing a setting somewhere in the admin to allow all countries to appear in the customer details at checkout but I am not sure where this is.

Would you be able to tell me if there is something I have missed or where to change this setting if all countries are already listed in the database?

Thanks!