Plugins not loading in production

Hello all.

I am using the live_tree plugin on one of my sites but have run into
some problems. When running webrick or mongrel in development mode
everything runs fine however when I run them with the -e production flag
they seem to be unable to find the live_tree plugin (the error log says
that ‘live_tree’ method isn’t found in the view).

Has anyone else seen this sort of behaviour with plugins? If so how did
you fix it?

Thanks

RJ