I just ran up2date on new Centos-3.1 installation and received about 5 of these errors. Is this something to be concerned about? The package kernel-2.4.21-15.0.4.EL is signed with an unknown GPG signature. Continue The package kernel-utils-2.4-8.37.3 is signed with an unknown GPG signature. Continue? The package GConf2-2.2.1-4 is signed with an unknown GPG signature. Continue? It is using the default sources file from the CD. http://mirror.centos.org/ _______________________________ Do you Yahoo!? Shop for Back-to-School deals on Yahoo! Shopping. http://shopping.yahoo.com/backtoschool