Dictionary for aspell / ispell???

[Robert Nichols]

When I try to run a spelling check in emacs, I get:

ispell-init-process: Error: No word lists can be found for the language "en_US".

I get a similar message when I try to invoke aspell directly.

aspell-0.60.6-7.fc12.x86_64

I've looked around, but can't find what I need to install.

-- 
Bob Nichols     "NOSPAM" is really part of my email address.
                 Do NOT delete it.