Hi all, So I was running my PPC G5 with a lot of processes and the whole computer froze, not just one application. I held down the power button on the tower until it shut off and then waited and turned it back on but it wouldn't start. Now whenever I turn it on, it goes to the gray startup screen with the apple and the loading "gear" and stays there, while the fans begin to run loud and fast. I tried resetting the PRAM with no luck, safe mode will not work, and when I ran in single-user mode, it came up with this error a bunch of times until I just turned it off: OHCIRootHubPortPower bit not sticking. I only have the keyboard and mouse attached to the computer, nothing else. Any ideas?