I have one of the most strange monitor flicker situations I've ever seen. Here is the problem. The whole screen seems to shake all day long. Its not a refresh type of shake...meaning you can't see it out of the corner of your eye but you can just sit and look at the monitor and see the screen shake side to side/up down. I've replaced the monitor itself with a brand new one. I've installed a brand new video card. Both things didn't work. Also it should go without saying I tried adjusting refresh rates and resolution. Anyhow just about a week ago I swapped out the mother board, for another one. So basically this PC is new other than the hard drive. And I still have the problem!! Its not sitting near anything that would cause interference. I have all the latest drivers for the monitor/videocard/motherboard. Does anyone have a suggestion on what I could try next? Thanks so much!