[Zope] Set Product Permissions: TypeError?

[Jonathan (Listserv Account)]

Hi all,

Add a Product, go to 'Define Permissions', change 'Use Database Methods'
from '(disabled)' to 'Use Database Methods' so I can use and call SQL
Methods within my ZClass. But when I try to save my changes I get a
TypeError:

  too many arguments, expected 2, got 3

Zope 2.3.0 source release, Python 1.5.2 (Linux). Traceback:

Traceback (innermost last):
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/ZPublisher/Publish
.py, line 222, in publish_module
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/ZPublisher/Publish
.py, line 187, in publish
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/Zope/__init__.py,
line 221, in zpublisher_exception_hook
    (Object: Traversable)
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/ZPublisher/Publish
.py, line 171, in publish
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/ZPublisher/mapply.
py, line 160, in mapply
    (Object: manage_setPermissionMapping)
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/ZPublisher/Publish
.py, line 112, in call_object
    (Object: manage_setPermissionMapping)
  File
/net/fs-1/bigdisk/po-1/opt/zope/Zope-2.3.0-src/lib/python/AccessControl/Perm
issionMapping.py, line 150, in manage_setPermissionMapping
    (Object: Traversable)
TypeError: (see above)

Any ideas? Am I doing something wrong or what?

Thnx!
Jonathan