Bryan, I hope my comments about information gathering were not taken personally. I did not mean to be accusatory or anything. I appreciate the advice you were giving, and merely offering an opinion how maybe your wealth of knowledge could be made more accessible to a newbie such as myself. >Something else is using the RPM database. >It's just preventing multiple write access. >Do you have up2date running? > > Yes, that turned out to be the case. Thanks for suggesting this. The up2date icon was indicating something needed to be downloaded. So I went through the up2date process and completed it, and then re-ran the public key install, and it worked. I now have also successfully installed Xine. Okay, now I'm over that obstacle, now I am curious. Why did Fedora seem to be able to install things through yum immediately after install, and CentOS had to do this key installation stuff? Dave