Hi! I tried to migrate my xwiki 1.9 installation from MySQL to a MSSQL 2005 Server. However I did this the following way: 1. I exported my xwiki content to a xar file. 2. Afterwards I deleted the old xwiki installation and downloaded a new xwiki 1.9 war File. 3. I used the MSSQL installation guide from the xwiki homepage (http://platform.xwiki.org/xwiki/bin/view/AdminGuide/InstallationMSSQL ) to get it work. And it worked perfeclty 4. Last I imported the backup of the old xwiki to the new installation without any problems However all pages and spaces are imported but if I try to open the Index or to search with Lucern Search (I read the problem mit the standard search engine) it seems that the xwiki is completley empty. Only the spaces are shown on the startpage. As well all content directories which i show on the pages ( #includeMacros("XWiki.SpaceContent") ) are empty. I also tried to renew the Lucene Index, without any success. But if I know the exact Name oft he article I can open it without problems. If I create a new page results in the same problem, the page cannot be found! What is the problem and how can I solve it. Has someone any idea? Thank you for your help, Florian