Resolved - Setup issue Cubecart 5.1.1 in Install & Upgrade Support Posted October 13, 2012 Have spent some more time on this. 1and1 cant advise further as they dont support CC. Summary of where I am now. The zend optimizer is shown to be installed when I run phpinfo which is inside the "store" folder where CC files are located. I have also installed the 5.2 version of Zend Optimizer ".so" file inside the store folder as well as the php.ini.php file which has the path to the zend optimezer inside the store folder. This path is also confirmed by php info. (this is the same set up I used sucessfully on my other shared server - the path in php.ini is of course different for each server) The main issue is therfore that the CC set up insists Zend Optimizer is not installed when it is? It also crashes with the 500 server error as stated before. Is anyone from CC aware of any issue with CC v5 running on a managed server (1&1 Server 2012 L 4 Core i Managed) as oposed to a virtual pro shared server with 1and1 where I have been able to install CC5 from the same downloaded file set. The only change was again I had to change includes/global.inc.php, change $glob['encoder'] = 'ioncube'; to $glob['encoder'] = 'zend'; to get it to install without any errors. This is proving to be a pain????? Anyone have a solution please?