[Zope] unauthorize !!!

Hi, I am protecting a folder \test using a login manager with TinyTable. The TinyTable contained the user info and was created inside the UserSource of the acl_folder of the Login Manager together with the userAuthenticate, userExists, userRoles and userDomains python scripts. The main problem now is that each time I open a new browser to access the content of the test folder and I got unauthorize error when I used one of the user info store in the TinyTable. But got successful when I used acl_user at the root folder. Regards. -kamal