Check your boot rom version in your system profile before you decide to do the update (in the "about this mac..." window). Chances are good you have a newer rom version than that update. When your machine is turned off, unplug the power cord for 20 seconds or so to reset the power management module. I've done this in the past and it corrected similar symptoms. If the problem persists- just reinstall 10.4.x, that may correct the problem as well. Real hardware problems usually result in kernel panics, you seem to have a software glitch. On Jul 31, 2005, at 10:10 AM, John Wilson wrote: > Have you done the firmware upgrade? Check this link: > > http://www.apple.com/support/downloads/ > powermacg5june2004firmwareupdate.html > > On Jul 31, 2005, at 10:48 AM, Dick Grable wrote: > >> My G5 1.8 GHz SP has been acting strangely lately. Somewhere along the >> upgrades to 10.4.x the shut down and restart options (along with >> control-eject bringing up the power-down options) quit working. Now >> if a >> software install requires a restart it has to be done manually. This >> is not >> a problem with 10.3.9 only 10.4.x. And even stranger the upgrade DVD >> no >> longer works as it can't seem to find any drives with a previous 10.3 >> install (there are at least 4 including an external f/w). Since this >> all >> works fine on my new Powerbook am beginning to suspect a hardware >> problem of >> some sort. Thank goodness for AppleCare. >> >> Any ideas out there? >> >> _______________________________________________ >> G5 mailing list >> G5 at listserver.themacintoshguy.com >> http://listserver.themacintoshguy.com/mailman/listinfo/g5 >> >> Listmom is trying to clean out his closets! Vintage Mac and random >> stuff: >> http://search.ebay.com/_W0QQsassZmacguy1984 >> > > _______________________________________________ > G5 mailing list > G5 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g5 > > Listmom is trying to clean out his closets! Vintage Mac and random > stuff: > http://search.ebay.com/_W0QQsassZmacguy1984 >