I have been running yum update manually every week for quite some time with no problems. Yesterday I needed to install transcode and whamo .......identical dependency loop exceeded package kernel-module-nvidia-2.4.22-1.2166.nptlsmp needs kernel-smp = 2.4.22-1.2166.nptl (not provided) OK no sweat, yum clean, rpm --rebuilddb which fixed things last time same error I messed some with yum.conf (added Fedora Core 1 - i386 - Released Updates) and played with other repos. nothing doing. and now even update won't run. What gives? Tony Grant -- www.tgds.net Library management software toolkit