A few weeks ago there was a power surge that killed my old PSU. I just got a new one today, I put it in, and now my monitor isn't recieving a signal. It's not the monitor because the monitor works fine with another computer. When I turn the computer on, everything else seems to be turning on right, it makes the beep noise that it's supposed to when it starts, and the video card is running as well. The new PSU is 500w, same as my old one. I even tried unplugging and starting again, or turning off and on the PSU switch, but that didn't do anything either. Anyone have any idea what the problem could be?