[xwiki-users] HELP: Again problems saving the preferences!

Dear XWiki Users, I'm again experiencing problems saving the preferences! After reimporting everything, modifying pages and preferences, it works for a while. At a certain moment the following error (only shown partly!) appears: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: Could not execute JDBC batch update com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document XWiki.XWikiPreferences Wrapped Exception: Could not execute JDBC batch update at com.xpn.xwiki.store.XWikiHibernate..... When taking a closer look at the xwikipreferences table of the xwiki database using the PgAdmin tool I can't find anything wrong! By the way, I use version 1.0.3342 of XWiki in combination with PostgreSQL 8.2 DBMS! I'm quite desperate, because the error seems to be unpredictable, sorry! Regards, Gerard ========================================== Dit bericht is uitsluitend bestemd voor de geadresseerde. Het bericht kan vertrouwelijke informatie bevatten. Als u dit bericht per abuis hebt ontvangen, wordt u verzocht onmiddellijk de afzender te informeren. Ook verzoeken wij u het bericht te vernietigen en de inhoud niet onder derden te verspreiden of te gebruiken. This message is intended exclusively for the addressee. It may contain information that is confidential. If you are not the intended recipient, we request that you notify the sender immediately. In that case, we also request that you destroy the message and that you neither use the contents nor disclose them in any manner to third parties. ==========================================