Hi, I just finished installing a CentOS 5.6 x86_64 system and the first thing I wanted to do after the install is to apply the software patches. But I get the following error when I try to run 'yum update': Package libuser-0.54.7-2.1.el5_5.2.x86_64.rpm is not signed and yum update exits without applying any of the patches. I tried clearing the cache and re-running the update command but I get the same error. Any help with this would be much appreciated. Best regards, Andre