[Zope] Can't remove proxy?

After setting a Python script to run via a proxy (Zope version 2.3.0), if I later go back and unselect the role, I can't save that change. The resulting page complains that I have to select at least one role. Is there a workaround? -- -- John R. Daily jdaily@progeny.com Systems Programmer Progeny Linux Systems Master of the ephemeral epiphany