How long did you leave the mac booting up? Some times it takes a while after an update to boot up. And sometimes I've not gotten to the login screen straight after running an update and had to shut down for a few seconds, but the second time booting up was OK. Try Zapping the PRAM. Coj Ray Statham <raystatham at shaw.ca> There seems to be a law that when you're in the middle of an important project things go wrong. I just installed the software updates for iTunes and Security. After I clicked 'restart' the grey screen with the Apple logo appeared but it won't go past that to the login window. I've rebooted with scanner, printer etc. unplugged but I can't get past the grey screen. I ran fsck -y and fsck -f commands from the Unix screen and it says the hard drive appears to be ok. I can't reboot from the Tiger discs because the cd player won't open. Can anyone help? I'm desperate; all the dealers and service people are closed for the night. I don't know if there are any issues with the Security update or not, but something happened immediately after the install. I'm running a 1 gig G4 tower with OS X 3.9 Thanks for any help. Ray -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/macdv/attachments/20050927/29549480/attachment.html