Hi, After spending hours searching online trying to fix this issue I figured asking on here is penultimate option before speaking to Apple. Right, a bit of background. I bought a 15" Macbook Pro, model A1226, 2.2Ghz Core 2 Duo, 2GBin in June 2007 in the UK, along with Applecare for it. It has stayed in the same stock configuration with no after market parts/components. I never even got around to upgrading the OS from Tiger I think I came with. It hasn't had a lot of use as I have a PC for main computing needs so the Macbook was primarily for use whilst traveling etc. All was well with it (except for the battery dying randomly which was replaced by Apple under the warranty) until maybe a year or so ago when playing video, if I paused it and it went to sleep, it would not wake up and I would have to power it off then on and it was fine. I put it down to me just not having upgraded the OS which seems silly thinking about it now. And another minor thing was the light on the Magsafe charger wasn't always lit or it was a faint light until I unplugged it then plugged it back in a couple of times. Fast forward to earlier this week and I turn it on connected to my TV, go away and make a sandwich and come back to blank screen and no light to the apple symbol on the lid. Hmm, that's odd. I guess I forget to turn it on. I went to turn it on and see the light on the lid release is on (continuously). Weird. I check screen brightness, unresponsive. Check the volume. I can hear it blipping up and down as I adjust it. Press number lock, caps lock and lights flash on and off. Turn it off and on again, nothing changes. (No start up chime I might add) I start to worry and do some research. I do an NVRAM reset, first chime, OK, good so far, second chime, good, third chime, OK, odd. But still blank screen and now no response from volume, num lock keys. I then connect to another Macbook with a firewire cable to to access it as an external drive. No problem. I was following a guide that said to delete the ghost image file or something that was keeping it in sleep mode. I deleted that and another file, turned it off and back on again. Nothing, still a blank screen. Crap. Then I try a PMU reset. Turns on, chimes, great, screen comes on, loads GUI, I see my desktop. Success! Then I go to move the curser and nothing. Crap. It's locked up, no response from volume, num lock. I turn it off and on again, and back to square one. Black screen, no response from keyboard and I can no longer access it as an external disk with another Mac. I have also tried multiple PMU and NVRAM resets. Looking around it seems this model has a known fault with the GPU which caused Apple to increase the warranty by an extra year. So it seems it could be something to do with that, or more worryingly, the logic board, or a battery on the logic board? So please tell me, how screwed am I? Does anyone have any suggestions? I really can't think of much else I can do.