Hey guys, hopefully someone will be able to help me out here. I have an intel iMac running Snow Leopard. I have not been able to get it to boot for the last 3 days. When I turn it on it gets to the white screen with the grey apple logo and stays there for ages, sometimes 10 minutes. If it does get past this I only get a blue/grey blank screen. Nothing else. Interestingly enough I can access my files on it from another mac on the same network when it is at the Blue/Grey screen stage. I have unplugged everything except the keyboard and mouse. I have tried booting in safe mode by holding the shift key whilst it boots. When I do this on the white screen with the grey apple I then get a progress bar show up, It doesn't fill though and the iMac then turns its self off again. Has anyone got any ideas on whats the problem and how I can fix this? I would be very grateful Thanks!