I am using a dual-head setup here and I have chosen a theme and fonts to
use for my desktop.  The panel, applications, etc. on the first head seem
to take the preferences (they look like the theme and fonts are what I
selected) but on the second head, they are different.  The look and feel
looks like the gnome default and the font is nothing that I selected.  It
looks like a 12 pt sans font of some kind.

I have been able to get the 2nd head to have the same settings as the first
in the past sometimes simply by bringing up the desktop font selector, but
that doesn't seem to be working anymore.