In the back-end, I have selected Login View Settings as "Modal Pop-up" and Modal style as "text" which works fine when displaying the Login and Register links when not logged in. However unless I have seemingly missing a setting, the "log out" text is not actually a text link at all but a form submission. Also the Login and Register links were right aligned but the log out button switches be left aligned.
When I tried switching to buttons, the Login and Register buttons were also different styles to the Log out button.
On a completely unconnected matter I have an issue with the social login images. On the registration page they appear in one order with Google+ being the left most but in login modal pop-up they are the other way around with Google+ being on the right.