[Zope] issue with authentication

Hello to all zope users....... I have been facing a problem with authentication in zope, i.e when i try to access the zope with *localhost:*8080/manage it is showing that the username and password , it is shown below..... [image: Inline image 1] even though i am giving correct username and password, it is showing that *you are not autherised person to access this resource ......(note:i have changed some check boxes in authentications in acl_users folder)* I hope that any body can help me to this issue.... Thanks in advance.....