Why Artlantis can't be serialized?
1- Have you installed the corresponding version matching with your serial number?
Check if you have not installed Render instead of Studio or vice and versa.
2- Did you copy and paste an Artlantis folder already installed on your computer or coming from an other computer?
Please be aware that Artlantis will refuse to be serialized if it has not been installed from the original installer.
Mac OS 10.6.x
Mac OS 10.7.x
Mac OS 10.8.x
Mac OS 10.9.x