OK, so one day last week, my 13' MacBook was working great while I was at school. When I get it home and go to turn it on this is what happens... Start up tone...then...nothing...then I get the blinking folder icon with a "?" I tried to start it up in safe mode- didn't work. I let it sit for a couple of days, and when my Dad was going to try and help me, it started up just fine, like nothing happened. I tried going to the system preferences to see about running some diagnostics, but didn't see what I should do. So I tried to go to the internet to look up what I should do, and then I got the dreaded swirlly rainbow thing. I couldn't even force quit any of the programs that were running. I tried holding down the power button, closing it, to shut it off. Finally after 10 minutes I got it shut off. Now it won't start up again; I keep getting the blinking folder icon with the "?". My husband told me that from what he knew that there was something wrong with the hard drive. But I'm thinking if it turned on that one time, then is there a chance that it shifted inside my computer and now it's in a position to where it won't startup anymore?? I've tried to start it up on a level surface and that doesn't seem to help. If anyone has any theories I'm really interested to see what you guys have to say. I just want to know what my options are before I take it somewhere to get fixed. (BTW my warranty ran out last month... convenient, I know!) Help is greatly appreciated. I got files on that thing that I need for school so the sooner the better. Thanks a whole bunch!