Well this is my story, I share my mac with my neighbor (its hers but she hardly uses it) I recently gave it back to her for a week or two because she needed it to make a newsletter. She called me a few days ago that I could pick it back up if i wanted to. So I did, all of my prefrences on my dock, desktop, folders, all stayed the same. However my iPhoto pictures that i had organized... are gone, the raw files are still there but the pictures are gone... any way to fix this? or know wat caused the problem...