So this Mac has served me very well, and it's been through a lot I was using it when suddenly the display went black. Initially it felt like sleep problems: In the past if I closed the lid and opened it immediately, it would be "confused", keyboard light still responsive but display off, until I shut the lid, let it fully sleep, and wake up again. However I was confused because I hadn't put it into sleep mode or shut the lid. When I rebooted it, the boot screen was filled with diagonal lines of what appeared to be corrupt pixels, running across the entire screen. They alternated between corrupt and normal, so you could still see diagonal glimpses of the boot logo in the background. Instead of loading the login screen, it became stuck at a completely white screen. After a few reboots, nothing changed. However one time, you could see the cursor, which was surrounded by roughly 1 square inch of corrupt pixels that followed it wherever it moved. I suspected that resetting the SMC + zapping the PRAM could possibly help, and it did not. I suspect the display card is failing. The only additional information I think might be relevant is that this Mac runs very hot, sometimes to the point of overheating, especially when in Windows 7. I've since invested in a cooler master fan base. Additionally, I've played some GTA IV on it, which transforms it into a mini-oven. These are the extremes; in Snow Leopard SMCfancontroller reports 60 degrees celcius normally, and intensive internet browsing/HD video playback brings it up to the mid 80's, and has peaked at 90 degrees. However, I don't know what exactly is wrong, so I included a few pics to see what you guys think. The boot logo is normal, I changed it via BootXChanger.