Conditional Logic when, dropdown 'is not' empty value?

Hi, I have a form with a 'Country' dropdown. It's required, but I don't want to pre-select a country (for political reasons) so I have 'Please Select' as the first option, and this option has no value. This seems to work to make the country required if the user leaves it at 'Please select'.

great..
But! I then want the rest of the address fields to be conditional based on this selection, so I have set 'Street Address', 'Town' and 'Postcode' to only show when 'Country' is NOT showing 'Please Select'. This doesn't work.

If I switch off Country 'required' it works.
If I add a value to the 'Please Select' option of 'Country' it works, but it always then passes the required check.

Here: http://test.greekpowersummit.com/ (the top right sidebar form)

Any ideas? Cheers!
Ben

Ah ok, thanks. I'll see if the Client can live with it blank, if not I'll eagrely await any fix you can come up with :)

Hi Alex, I've replied to your email, not quite fixed yet :/