My toshiba restarts itself or the screen blanks out in different colors after bo

[jonny5]

my toshiba restarts itself or the screen blanks out in different colors after booting. it can go red,blue,black or white with the machine still running

 

[ricardois]

probably overheated graphics card is failing if it is a notebook there is not much you can do, try cleaning it, increasing the ventilation, buying a notepal, best thing is send it for repairs...