[Scribus] Font Help Please

[John Jason Jordan]

The other day I downloaded and installed three of the ADF fonts on my
Ubuntu Feisty computer. I put them in ~/.fonts, then ran sudo fc-cache
-f, but the fonts did not appear in Scribus. I closed and restarted
Scribus, but still no fonts. Then I rebooted the computer, but the
fonts still do not appear. 

They also do not appear in any other application, so evidently
something more basic is wrong. What is the secret to getting fonts to
work?