Hi Caridad,
problem 1 is solved now. the options of the dropdown field "country" can now be seen again.
see here: http://www.womo-reisen.de/?page_id=2662
to point 2 and 3: I have the same form below another Taxomonie Field "state". This field is displayed as a dropdown (select). I do not schaffes unfortunately, this field display in the style of field "land".
Thank you for your help