Yoast SEO

Hi,

Been trying to find out how/where to remove the sitename from the Page Titles, as no matter what I do it is always in there page titles.

I remove from both Post Title template: and Page Title Template:

%%title%% – %%sitename%% – %%sitedesc%%

and still site name appears.

Is there something in Yaost I am missing…or is there something WP 3.2.1 that I am missing?

Many thanks in advance