no but it does sound rather alot like a problem i had a while back, my screen would intermitidly turn off sometimes it would work for a good few hours and sometimes upon booting it would get to my AMD splashscreen and then turn off, a good way to test if it is failing is to shine a bright light on the monitor, that will then show you if the monitor is actually on and the backlight has failed even a mobile phone will be sufficent to see if it is this problem