Safari (in Mac) oder IE (in Win 7) often shows the heading fonts for all text on my installation using the Sentence them. Unfortunetely there are only google web fonts in your setup page for this :-(! I consider choosing Arial or another websafe font at this section, too ... Do have any idea how can use "Arial" for all visible text? Any quick solution? Custom.css doesn't do the job...
For future: Can you add websafe- fonts for heading fonts in the backend- options, too? I would be proud of it! Thx :-)