The Mac was running fine until I tried to open an email with photos and everything locked. I could not get to the dock at all. So I decided to shut it down completely and reboot. When I did that, I got the chime, but nothing else. I tried to reset using the command-option-P-R keys but that didn't work. Called apple and discovered that my complimentary phone service had expired but the techie gave me a tip which was to load disk 1 and try to do something from disk utilities. Quite frankly, I'm lost. I'm new to Mac's and you folks are my only hope for tonight. Any suggestions? By the way, I can't figure out how to get the startup disk to eject.......