Ok my PSU is a Corsair GS800 800 watt, and i have tried it on my 22 in vizio tv and my brand new acer monitor happens on both and only during wow others games it works fine. As an example look at your monitor and divide in half down the middle of the screen so you have basically 2 sides and then switch them and that is whats happening, and when that happens i close wow and my desktop is the same so it forces me to restart my comp
hm, this is very strange, does this happens with every video card output (vga/hdmi/dvi)? or is it specific?
well if it is just o WOrld of warcraft, it should be a config problem, try changing some settings in game.