Yes, using 1.5.5 of the script.
Server: Localhost via UNIX socket
Server version: 5.0.92-community
Protocol version: 10
I want to make clear though, that the library and the mysql_connect() function works perfectly when I go to run.php with my browser - it only fails with those errors when I run it from a cpanel CRON job...
So, it's as if some environment variables are not set, I just do not know how to set appropriately...