Something has happened on our test-site. http://testbutik-marina.creategreat.se/
I worked like a charm earlier and after several of all the updates of WooCommerce somethings i wrong with the code. Have 2.09 now and the theme Blanco.
On variations/attributes like size or color the name of the choices are the permalink-name instead of the real name. So it´s only small letters etc.