I am having some strange issues with file column today. This goes back to something that I was working on before and successfully have it working on my development box however it is not working on my staging machine. I have a dynamic_dir action set up for file_column that is called via the :store_dir => :dynamic_dir the action is this: def dynamic_dir File.join("data","files",self.user_id.to_s,"image") end This works perfect on my development machine however when I loaded the code up to our staging machine (getting ready to go live with it) I keep getting the following error: ArgumentError (dynamic_dir'' is not an instance method of class File): like I said this works on my dev box but not on the staging machine. The difference between the two boxes are that my dev box is a PowerBook while the staging system is Fedora Core 4. The tmp files are getting created however the main files are not. Any thoughts? Andrew