Cannot change Pinboard fonts

I asked this previously, but I still cannot get the Pinboard heading font family to change using the dropdown menus in Theme Options > Typography. If I select anything other than Oswald, the heading fonts display as “sans-serif”.

I have tried this multiple times with a fresh install of Pinboard 1.0.6 and WP 3.4.2 on both a web host and a localhost setup, using Firefox and Safari browsers. The heading font family changes correctly if I use the Esplanade theme.

Daniel, how do I get the heading font family to change in Pinboard?

See http://www.everlearners.com/pinboard/