Im just courius what the problem can be, my comp is about 6 months old, never had any problems before but one day when i came home the comp when ever i started it, it would come on to windows then when clicking firefox the screen would go out and say No dvi signal, i installed old grafic drivers so i could at least start firefox so i thought that it was the only problem, but later that day i got blue screen, i reinstalled windows on my comp works fine for a whole day then after that while playing a game my screen started lagging and the game froze and i could not do anything about it restarted the comp and once again the screen would say, no dvi signal, waited a day and im on the comp now everything seems to work but im kinda afraid it might happen again and i wanna know if anyone knows why?