Merry Christmas, y'all. Here's my PC: It's an iMac G5 '06. As one of my christmas presents, I was given Left 4 Dead, so I got on my Mac, and tries to restart my computer into the Windows OS via Startup Disk. (I have bootcamp running, obviously). Before any of this, when I came back from Las Vegas about a month ago, when I tried to start up my computer it would stay at the gray start up screen, and make a noise like this. "Vrnnn... tsk tsk tsk tsk... ernnnn" After doing that a few times a folder with a question mark on it would appear. I restarted it a couple times, and it worked. But now, it's making the noise and after doing it a few times, just stopping. Now it's frozen at a gray screen. Can anyone help me?