Newbie problem associating user with created objects

I'm embarrassed that I can't figure this out on my own. My only excuse is that I'm just a few weeks into rails....

So, I've got restful_authentication all up a running fine. I've got an "Idea" model, and all I want is for users to be associated with the "ideas" they create. There's no problem creating new ideas, but for some reason I can't get them associated with the user! When I try to access @idea.user.login through the view, I get the error, "You have a nil object when you didn't expect it! The error occurred while evaluating nil.login"

The relevant Idea Controller part:    1. def create    2. @idea = params[:idea]    3. @idea.create_rating ## I have a simple rating system too...without this in there, the view freaks out if it tries display the rating of an idea that has not yet been rated--I have vague sense that this is what's causing my current problem...    4.    5. respond_to do |format|    6. if    7. flash[:notice] = 'Idea was successfully created.'    8. format.html { redirect_to(@idea) }    9. format.xml { render :xml => @idea, :status => :created, :location => @idea }   10. else   11. format.html { render :action => "new" }   12. format.xml { render :xml => @idea.errors, :status => :unprocessable_entity }   13. end   14. end   15. end

The relevant view code is simple:

   1. <%= @idea.user.login %>

Some associations: User: has_many :ideas

Idea: belongs_to :user has_one :rating

Rating: belongs_to :idea

A couple extra pieces of information: if this part of the view code is removed, the view displays all other attributes of model just fine. And here's the kicker: if I go in rails console and create a new User, 'u', and then type in " i = ', the console will spit out the appropriate information when I type ' i.user.login.' Bah--why in the console but not in the browser?! Can some more educated rails developer help me out? Thanks!