Hello, I have searched everywhere for an answer to this but am yet to find anything. I recently upgraded to Plesk 10 from 9 and am experiencing issues with sites that were originally HTTPS, for example I have a client that had a subdomain set to use same directory for HTTP and HTTPS with an application installed in this subdirectory. Since the upgrade the application was available only via http, I have now disabled compatibility mode and no difference has been made. If I create a new subdomain for the client and try and enable SSL for the subdomain I am unable to install any new applications into HTTPS://subdomain.domain.com only HTTP is available. When I remove the tick from the Enable SSL box for the subdomain HTTPS is available when I get to install application but once installed I am unable to access the application with a 404 error. Any ideas appreciated. Kind regards.