Here's what has happened to me. I hope someone knows what I can do to recover my files i recently upgraded to snow leopard. i was using the on screen keyboard, and then minimized it when I tried to use it again, everything froze with the spinning cursor for more than 10 min. I turned the power off on restart i accidentally chose the guest user instead of my own. It said 'logging in' for like 15 min, but nothing happened, and everything froze again. I turned off power + restarted again when I logged in to my user, it was as if it was a new user. all preferences were gone. The 'documents' folder and 'downloads' folder were GONE. All files on my desktop were gone. I restarted, and now there is an EMPTY 'documents' folder. I'm not sure what else is missing, but someone please tell me the files and user information is still somewhere on this computer, and that I can access it.