Hello All, After a linux machine crash or cold restart something strange is going on with Zope (2.2.2) - all objects built on ZClass-based products like Yihaw or QSurvey are broken. Products are in Product folder, and i even can add an object and it works, but when i try to access it in a new browser window it reports ========== This object is broken because the unknown product that created it is no longer installed or is installed incorrectly. Please contact your product vendor for assistance. Note that the data associated with this product has not been lost, and will be accessible again if the product is reinstalled. ========== Well, i removed QSurvey and tried to re-install its current version - something goes wrong again: ========== Zope Error Zope has encountered an error while publishing this resource. Error Type: Could not load oid ={, pickled data in traceback info may contain clues Error Value: None ========== Is there any way to fix ZODB less radical than complete reinstall? -- Best regards, Alexander N. Chelnokov Ural Scientific Institute of Traumatology and Orthopaedics 7, Bankovsky str. Ekaterinburg 620014 Russia ICQ: 25640913