[Zope] Problem to log out from CMF Site

[Mico Siahaan]

This is another confusing thing for me. I tried to installed  CMF and
add CMF Site. Everything seemed fine until I tried to log out from the
site. I got error message:
'Site Error. An error was encountered while publishing this resource.
Error Type: Bad Request
error Value: Invalid authentication token'

Because I am a zope newbie, I wonder what caused this. How to solve it?
I'm using Zope 2.6.0 binary release, linux Mandrake 8.2 , CMF 1.3. 

Thanks.
-- 
mico@cbn.net.id
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