newbie problem with 'import'

[Michael Ackerman]

Hi. I'm having a problem: I have a module Foo which imports a module
Bar. When I try to load Foo into hugs, I get:
        Reading file "Foo.hs":
        Reading file "Bar.hs":
        Reading file "Foo.hs":
        ERROR "Foo.hs": Module "Bar" not previously loaded
What horribly stupid thing have I done?
                    Any help appreciated,
                    -- Michael