Okay, I installed everything correctly yesterday. I put in a 120gb hhd and 8gb ram into my i5. Look me a while though with the hard drive. Those tiny screws were just not going in. Well, every time on start up, it makes that apple chime but the screen turns gray for 30 seconds, and then it turns blue with the spinning wheel and loads to the desktop. So my question is, is it supposed to go to a gray screen because when I had to stock hd, it was not doing that? Everything else works fine, it is just bugging me.