Ok so I purchased a 23'' display from an ad off craigslist a while back. At the time all I had was my roomate's pc with a DVI port and my iMac G4. It worked fine for a while, then one day the display was black (althought somewhat backlit). I finally got my pbook and tried it on that and it also didn't display anything, and the notebook didn't even recognize it. The other weird thing is that the buttons on the side don't work and I can't turn the display off using it's power button. Is there any way to reset it or did it just go out? How does applecare work, I mean can I take it to the apple store and have them look at it? I doubt that it's under warranty at all, and I don't have the papers.