So about a month ago my HDD failed and apple repaired it for me. Today i went to boot it up and it froze on the boot screen with the spinning wheel. so i booted into win 7 via bootcamp and it was fine. so i know its not the HDD, so i kept booting and turning off, until it finally went through, is there anything i can do to make sure there isnt anything wrong with my mac partition?!?!?