Current build has been perfect for four months until last night I came home after work and swithced on my computer and I got a flickering screen at the motherboard spash screen, which was flickering on and off at high speed like a strobe. By the time I reached the Windows welcome screen, the flickering had stopped, and the rest of the boot process went normally. I played some games and didn't notice any problems with flicker. I was hoping this was just a freak thing and let the computer go to sleep, but upon wake up, a few hours later, I got the same flicker, this time at the welcome screen which went away by the time I reached the desktop. Has anyone seen this type of thing? Video card? Motherboard? Will it lead to failure?