[Zope] Cannot login with or edit existing user details

[John Grannan]

Dear all,

Zope 2.5.1 running on Win2K server.

Recently we found that:

a) Users in the root acl_users folder cannot now login.  However I can
get in on the 'superuser' Zopeadmin ID no problem.

b) Whilst the user list exists and is visible, clicking on a user e.g.
xxxxx which then invokes:

http://url/acl_users/manage_users?name=xxxxx&submit=Edit

Fails with a Zope generated error page:

Zope has encountered an error while publishing this resource.

Error Type: AttributeError
Error Value: name

- - -

The same thing also happens if I generate new other 'acl_users' folders
in sub-trees.  I can populate them but not then edit them.

Recent changes to the site are:

i) HTTP Port changed from 8080 to 80;
ii) ExternalEditor product loaded

Assistance on where I go from here would be greatly appreciated.

Regards

John Grannan, IS Manager
Faculty of Arts Computing Services Unit
University of Manchester, UK.