Either I've made a mistake in my configuration or else packages from other repos can obsolete core packages For example, I did a "yum update" on some rpmforge packages and saw this: Installing: perl-Date-Manip noarch 5.54-2.el5.rf rpmforge 210 k replacing perl-DateManip.noarch 5.44-1.2.1 perl-IO-Compress noarch 2.024-1.el5.rf rpmforge 242 k replacing perl-Compress-Zlib.i386 1.42-1.fc6 If I try to install the original packages: % yum install perl-Compress-Zlib Loaded plugins: priorities 476 packages excluded due to repository priority protections Setting up Install Process Package perl-Compress-Zlib is obsoleted by perl-IO-Compress, trying to install perl-IO-Compress-2.024-1.el5.rf.noarch instead Package perl-IO-Compress-2.024-1.el5.rf.noarch already installed and latest version Nothing to do % yum install perl-DateManip Loaded plugins: priorities 476 packages excluded due to repository priority protections Setting up Install Process Package perl-DateManip is obsoleted by perl-Date-Manip, trying to install perl-Date-Manip-5.54-2.el5.rf.noarch instead Package perl-Date-Manip-5.54-2.el5.rf.noarch already installed and latest version Nothing to do I have rpmforge with priority=10 I have the centos base and update repositories with priority=1 Have I made a stupid mistake with my configuration? -- rgds Stephen