Zope CMF problem

[rcandersonmn]

We have setup a new Zope/CMF site with hopes of testing the
capabilities of CMF.  We are having trouble logging into user-accounts
setup with the role of reviewer.  After entering user name, password,
and hitting submit - the screen redirects back to the login screen
with no error statement about bad user name or password.

This seems to be a problem out of the box.  

Any advice would be welcomed.

-Ryan