Well this isn't urgent, but I'm just curious as to what happened with my computer. I just don't want history to repeat itself. Specs: IMac G4 800 MHz Power PC OSX 10.4.11 So here is the preface to the problem: I was just messing around on my computer before this all happened. All I remember was just surfing the web and streaming M3U's on quicktime (it was the quick option for when I had my desktop shown in a new window and the icons were in list mode). I remember I couldn't get an M3U to play. It just buffered till hell froze over and back again. I don't remember clicking on anything. I ended up needing some food so I walked into town and had a sub (it was delicious by the way). When I got back my computer was turned off for some unknown reason. This is the problem: I turned on my computer with a raised eyebrow and paranoia on my mind. I thought maybe some serial computer turner-offer was sneaking around my apartment. Any-who, once i booted up my computer my whole desktop was swept clean. None of my god awful clutter was there. My dock was set back to it's default programs (You know... safari, ichat, address book, itunes, etc.). I believe all of my system preferences have been set to default. I used to have the hot-corners set, but they don't work anymore. I'm sure I can set them again. Also, when I try to open programs I had on before this mess, it would ask me to give a serial number. All of my files are still on the computer (minus the collection of useless stuff on my desktop). I just don't know what happened. Question: Does anyone know what I have done? Did I somehow delete an important folder? Was my suspicion right about the burglar who likes to turn off computers? Funny thing, though, is that I am about to sell my computer, so it just saved me from more work!