This is weird. I was using my Mac Mini, which had the 10.4.2 update installed today (just the update, it has had Tiger for months). I was getting ready to play The Sims 2 for a while. Then, during the game's loading screen, it turned off. I thought "it's probably just a cable". I checked the cables, I turned it on, and the led light was doing like if it were sleeping. So it went through the start up. When I got to the login window, I clicked the sleep button to see if I could fix the led light problem. But instead of going to sleep, it turned off. I disconnected everything and reconnected it again. I checked all the cables, and then I tried to turn it on again. This time, it didn't start up. It just shows a folder with the OS face inside, which changes to a "?" sign back and forward. I checked the cables again, but it's still the same. Now the led light is steady sometimes, and blinking sometimes. I can't do hardware test because the "The Sims 2 DVD" is still inside. I tried to get it out by holding the mouse's button during start up, but of course, it won't be ejected because the Mac won't start up. In conclusion: 1. What does the folder/OS face/"?" sign mean. 2. How can I get the DVD out? It's a slot loading drive. 3. Am I going to lose everything that isn't backed up ? (please say no) 4. What could have caused this problem? Is it 10.4.2? Thanks in advance. PS: My neighbor was using my Mac without permission this morning ... Do you think it was her ?