search for: preferred_address_address

I have an application which I''m running using Mongrel and Apache as described here http://www.napcs.com/howto/rails/deploy/. I have a model Person which I am attempting to use acts_as_ferret with. When I first try to do a search the index begins to get built but it its fails halfway through with the following error in the browser: === Proxy Error The proxy server received an invalid