I know that this is stupid but I tried to change disk permissions on the guest account for my hard drive. I realize now that this means they could not open anything not to mention that when I logged off I would not be able to boot my computer. I get the blue screen with a fan/asterisk type thing then it goes back to the blue screen and repeats forever. I already repaired disk permissions with the start up DVD but I was wondering if there were commands I could use in terminal to allow me to access my hard drive. I'm running leopard.