I am the frustrated, illiterate owner of the above laptop and recently started experiencing problems with the screen that remained black when I switched it on. I would have to repeatedly turn it off and on before it decided to respond. I tried for about 90 minutes using the prescribed sites on the Quick Tour sheet but to no avail. If anyone out there in the Computer "black hole" has experienced such a problem and can recommend a fix please illuminate me with your brilliance as I am at my wits end and don't even know if I need to replace my laptop. Unfortunately the manufacturer is of no assistance and that isn't surprising in this day and age. HELP!!
From your description, it sounds like your computer has a loose or bad connection that only intermittently connects. But your post leaves out a lot. Do the LEDs in the front light up? Does the hard drive spin up? Can you hear the fan? Ultimately this sounds like a hardware problem. My recommendation would be to take this to a Toshiba computer tech and get it diagnosed. It could be just a loose cable or wire causing this problem.