Hi, I had to discard a version I was working on in Zope 2.1 twice already because in the normal view there happened a "VersionLockError": Error Type: VersionLockError Error Value: ("'\\000\\000\\000\\000\\000\\000\\005\\341'", 'ArtikelVersion') Traceback (innermost last): File /serve/Zope-2.1.0-NR/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /serve/Zope-2.1.0-NR/lib/python/ZPublisher/Publish.py, line 179, in publish File /serve/Zope-2.1.0-NR/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ApplicationDefaultPermissions) File /serve/Zope-2.1.0-NR/lib/python/ZPublisher/Publish.py, line 169, in publish File /serve/Zope-2.1.0-NR/lib/python/ZODB/Transaction.py, line 237, in commit File /serve/Zope-2.1.0-NR/lib/python/ZODB/Connection.py, line 327, in commit (Info: (('*/z19MlDlV7e7P0QHV0lJ5A==', 'AdBanner'), '\000\000\000\000\000\000\005\341', '')) File /serve/Zope-2.1.0-NR/lib/python/ZODB/FileStorage.py, line 614, in store (Object: /serve/Zope-2.1.0-NR/var/Data.fs) VersionLockError: (see above) Is this something known to you? Is this a bug? Does anyone know when this can happen? Are there things to avoid when working in a version? If this happens rather often and unknown to the content manager, I guess the Versions of Zope are rather unusable, because they do not protect your working securly! Regards Jochen