By the way, do as follows to disable the trial notice for the beta-testing period:
If you are testing XC5 on a local computer, your Curl is likely not configured yet and thus cannot connect to our activation server. As a workaround you can replace the "lib/PEAR2/HTTP/Request/Adapter/Curl.php" file with the attached one (but never do this on a live server as this opens a security hole in your XC5 installation).