Here is what's wrong with my Macbook Pro version 10.6.7. Whenever I boot up my Macbook, I would have to wait at least 7-10 minutes on the white loading screen with the Apple logo and the loading bar. I searched around, and I found out that reformatting your computer is the only way to fix the long boot up time. I popped in my Mac OS X Install Disc 1, restarted my macbook and held on the ALT key to switch to the Install Disc. What the problem is whenever I click on the Install Disc 1 option, it just freezes. I waited about 15 minutes, but it just stayed like that. Does anyone have a solution to this?