Currently Being ModeratedApr 27, 2013 7:40 AM (in response to sneakytrolls)
I suggest you restart in Recovery Mode and use Disk Utility to Both Repair The Disk and Repair the Permissions.
After doing that reboot into OSX and make a full backup..
If CCC doesn't work then use Time Machine, but you need a Backup.
Currently Being ModeratedApr 28, 2013 2:57 PM (in response to sneakytrolls)
I had the same problem you described.
The solution for me was:
1. Make sure you do not have have pendrive plugged into any of the USB ports of your Mac.
After that everythong was following the instructions from Apple.
Hope this helps. Bye. JP.