I few days ago I tried to install the system update to 10.411, and it couldn't do it for some reason. So I ran disk utility and repaired the permissions, and then tried to verify the disk. It failed to verify the disk and said that "keys were out of order." Now my G5 won't finish starting up: the blue bar fills up, but never goes away. Command+S doesn't do anything. Option doesn't do anything. Command+option+P+R works, I think, but doesn't make it start up. Shift causes it to shut down after the spinning widget screen. C doesn't do anything (my boot cd is in) I don't know what to do, please help!