Thank you for the advice to update! Problem is that i get the following error message: Gathering header information file(s) from server(s) Server: CentOS-3.3 - Addons Server: CentOS-3.3 - Base Server: CentOS-3.3 - Extras retrygrab() failed for: http://mirror.centos.org/centos-3/3.5/extras/i386/headers/header.info Executing failover method failover: out of servers to try Error getting file http://mirror.centos.org/centos-3/3.5/extras/i386/headers/header.info [Errno 4] IOError: HTTP Error 404: Not Found Somebody knows what?s going wrong? tia!