My old computer (compaq 7000, 1.3p4, nvidia card) has stopped sending an image to the monitor. I tried the monitor for this computer and it did the same thing as the old one(no signal). I opened it up and blew everything out and made sure the vidoe card was locked in place. And the speakers make the welcome sound after a minute, so i know windows is starting up. Right when I turn it on it the beeps make a dash and 2 dots then a pause and 2 more dots, sounts like( -.. ..), i dont think thats the sound it made when it started up before the proble. Is that computer startup language for "my video card is broken!"?