I have an Acer 22" monitor that is 2 yrs. old. I have an ATI 2600 video card that is less than a year old. And I have been noticing in the last 2 months. My screen will all of a sudden go black. Or when I restart sometimes my screen will not show up at all. I am running XP pro, Gigabyte motherboard,AMD 64x2 Dual 6000+ cpu, 2 Gigs memory. Computer just rebuilt in Jan.