This has happened twice, the first time I was using my external monitor at the same time, and when I left VM fullscreen, the screen went about 90% black. The second time, I closed the lid while XP was running and when I opened the lid hours later, It seemed that I woke it up but couldnt see anything. I could hear the drive and all but no ESC nor brighness switch would bring it back. The external display was not connected this time...
