Rss feeds not working help

Rails
1

I had created two rss feeds and they were working perfectly the other
day but for some reason they now show in an xml tree format when
displayed.

controller:
def rss
@products = Product.find(:all, :order=> “item_name”)
render :layout => false
end

view:
xml.instruct!

xml.rss “version” => “2.0”, “xmlns:dc” => “http://purl.org/dc/elements/
1.1/” do
xml.channel do

xml.title “FlashItem products”
xml.link url_for :only_path => false, :controller =>
‘products’
xml.description “Items advertised on the FlashItems website”

@products.each do |p|
 xml.item do
  xml.title(p.item_name)
  xml.link(url_for :only_path => false, :controller =>

‘products’,:action => ‘show’, :id => (p.id))
xml.description(p.description)
xml.guid(url_for :only_path => false, :controller => ‘products’,
:action => ‘show’, :id => (p.id))
xml.pubDate(CGI.rfc1123_date p.updated_at)
end
end
end
end

could something be wrong with the http://purl.org/dc/elements/
1.1/ url bit that I believe does the formatting of the feed?