Hi, I hope someone will be able to help, never had a problem with a freezing mac in 5 years of mac use so wouldn't like it to start now! Whilst using firefox this morning it froze, force quit wouldn't work, entire screen froze. Keyboard shortcut wouldn't allow me to shut down, so I had to shut down via the on/off switch. When I came to switch it on again it loads up to the log in screen, the mouse moves around the screen but when I click on my username nothing happens. I've taken out all USB cables, switched wireless keyboard and mouse on and off etc, restarted, no joy. Next I tried to startup with the c key and install disc, but again I got to the log in screen and nothing happened. I'm assuming as I can't log in and get to a desktop that is why it's not allowing me to start with the disc? Is there anything I can do? Is it staring me in the face? Thanks!