I just did an update, and PAM was was one of the modules. Yum has placed /etc/pam.d/system-auth.rpmnew and it's different than the existing file, which is actually a link to system-auth-ac. The files are slightly different, and I'm wondering if the differences are important. I can't find any docs on the reason for the change, so before I spend time becoming a PAM expert, I'm wondering if anyone knows why this change was made, or were it might be documented. Thanks, --Bill