hi all i did a update yesterday and yum loaded in fedora core (2.6.10-1.760_fc3smp) this is a single cpu unit on a single cpu motherboard amd 64 3500+ on msi k8nneo2 platium with 1gb ram i also have installed fedora core (2.6.10-1.760_fc3) the out come is that with the smp kernel it will reboot at will the standard 64bit kernel is stable question is why did yum install the smp on a single cpu machine? thanks for any info david