All day have been trying to upgrade my Hard Drive.... Literally all day!! The problem I'm having is I'll put in the hdd i want to use (750 gb. Toshiba) I formatted it on my imac to journal. Put in the install disk hit command, I've hit c, pretty much everything I've been told over the web... It doesn't go past the apple logo. What I've been wondering is, Is there a way to go straight to mountain lion, and does it have to be the exact disk that came with the mbp? Please understand I'm a noob with mac just switching over....