title: Authorize Attribute w/ Roles not working properly
body: <p>[Authorize (Roles="group1")]</p>
  
  <p>will not allow group1.</p>
  
  <p>also, if I do Roles.IsUserInRole("group1"), its false despite the users role correctly identified in asp.net membership db.</p>
  
  <p>what could i be missing?</p>
  
  <p>EDIT:  if I do this I can read the role, but not as above: Roles.Provider.GetRolesForUser("username")</p>