Hey guys. so i have a bit of a problem. My computer decide's that all of a sudden it doesnt want to show the screen. So i usually am using it then i hear a popping noise then the computer is still running but no monitor. THen evenutally it turns the monitors on again, but freeze's up somtimes also. The monitor's dont pop but the tower does. The integrated video card doesnt seem to work right now, it only works when i have my ati radeon dual monitor video card in. I have no ideawhat to do on this one or how to fix it