help!! my lcd monitor is not receiving signal from the pc. i changed my new psu to an old one cuz i thought that my speed of 1.3 ghz can be changed back to 2.2 ghz but that didn happened so i switched it back to the orginal. i connected everything back but i couldn get the display to show the screen. i checked the pins on the lcd monitor cable and there are only 14 pins, instead of 15... i dun remember breaking the missing pin....what to do?