I'm using Plesk 10.4.4 on Ubuntu Lucid I experienced an issue with subdomain's deactivating and being unactivatable after a back up. I followed this thread in a effort to correct it http://forum.parallels.com/printthread.php?t=210024&pp=40 This kind of worked: the subdomains are now activated. However this has resulted in a new problem: visiting any of them directly (e.g. http://test.buddhafield.com/ ) results in a Plesk default page. There seems to be an issue with Apache, because if I follow the "Preview the website in your browser" icon (bottom of page under Website & Domains in the domain control panel), the site will appear. Any leads welcome.