Hello, I have an issue. I decided to install Win 7, and at the half way point of the partition this message pops up "Back up the disk and use Disk Utility to format it as a single Mac OS Extended (Journaled) volume. Restore your information to the disk and try using Boot Camp Assistant again" I tried to correct this I clicked on the erase free space an it didn't change anything. Yes Im a uber noob to mac, anyone who can help me, I would greatly appreciate. I dont know if anyone needs any more info from me so please let me know.