[Zope] acl_user problem

I just installed a fresh 2.2b3 on x86 Linux. I ran the install, fixed the permissions on my var directory (nobody:users) and started Zope. I logged in as the superuser and created a new acl_user (zopeAdmin) with a "Manager" role. When I try and log in as "zopeAdmin" it just keeps prompting me for the password and won't let me in as that user or any other user (except the superuser). I'm I missing something painfully obvious? Jamey