For some reason my computer frooze when I tried to sleep it. I quit all applications as usual before selecting sleep, and for the 2nd time ever. The computer screen went black like it does before it switches the monitor off. However it never switched the monitor off. I had to hold the power button down to shut the computer off (which I have a feeling is really bad for the hard drive). This is very frustrating because I have to choose between letting my computer stay in between sleep and on. vs. turning my computer off abruptly. Image of what screen looked like: http://img411.imageshack.us/img411/8371/dsc02843s.jpg Checked software update, no new update for me. This is a frightneing issue for me because I think that shutting down with the power button is going to mess up my hard drive. After the screen goes blank when i select sleep I never hear the drive spin down. This is very close to human insomnia. You do close your eyes, but you can't fall asleep. On my mac the screen goes blank, but the drive never spins down, and the screen never shuts off. What am I supposed to do?