Was editing a photo in iPhoto just a few minutes ago and BOOM, I get the "you must restart your computer by holding down the button" prompt and the screen is locked. So I hold it down and restart. Open back up iPhoto after restart and it's like I'm starting it for the first time. It shows ZERO photos. What happened!?!?! I seek my photos from an external hard drive and the file is still there so how do I reimport them into iPhoto and why did this happen? I have the Mini iPhoto Library icon which is 70 gigs in size, which has not only my photos in it, but also my preferences. How do I get iPhoto up and working again? Do I just have to tell iPhoto where to look for my library? If so, I forgot how to do this.