OK, I'm scratching my head. I did a fresh install, and wanted to import a VB 4 board. Using Paul M's, script, I got the follo0wing error: Fatal error: Class 'XenForo_Importer_Abstract' not found in D:\Websites\Bunker\XF\library\XenForo\Importer\vBulletin4.php on line 10 Paul indicated that I should re-upload the files, which I did with the same results. Then, I tried to do an IPBoard import, and received the following: Fatal error: Class 'XenForo_Importer_Abstract' not found in D:\Websites\Bunker\XF\library\XenForo\Importer\IPBoard.php on line 12 So, I wiped everything, deleted database, downloaded the full package again, and unzipped it directly to the server. No change. What else should I check?