Ok...I've had my iBook for a few months now, and had no problems until yesterday. My computer froze, and iTunes was skipping. I let it sit, no change. Then, when I restarted it, the Airport didn't boot up. It said "Hardware not found." Ok, so I did what any converted Windows user would do, and restarted it. After booting it in safe mode, restarting, and booting again, it worked. This time though, after a few minutes, I got the "You must restart your computer." screen (so-called Black Screen of Death). Well, now every time I boot up the machine, either the Airport isn't detected, or it is, but I get the Restart screen.
I was told many things to do: PRAM, Disk permissions, booting from the install disk, backing up and re-installing, Hardware checker, and as a last resort: Gettinga pro to do it.
Any idea what the problem might be, or how I can get it fixed? To my knowledge, the laptop is under warranty, but I have no idea if it's a hardware or software issue.
Feel free to PM me or post here.