[support] Views Showing Wrong Page

Hi, I am running Drupal 7 and have created several views. I am noticing a problem. If one adds a node ID in the URL, it returns the views page for that content type instead of 404 error. Example: http://www.muktware.com/articles/3583 where 3583 is the node ID of this content. http://www.muktware.com/3583/get-gnome-2-panel-ubuntu-1204 I want that when someone enter this kind of URL " http://www.muktware.com/articles/3583" It should return to page not found. Best Arnie