Just went over suse-amd64, similar thread: Try YaST --> System --> Power Management, there are various settings there to try.
Lew.. does running poweroff yourself work right? If not, add apm=smp-power-off to your grub (or lilo) config as a kernel option for the next boot.. there was (is?) an issue with smp and powering off like that which that option used to fix. Or maybe it's just apm=power-off now.. 9.2 might've added that before on it's own. If you're on 9.1 the kernel options might not apply to your kernel. Volker -- Volker Kuhlmann is possibly list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me.