I have a custom built ABIT NF7-M motherboard and i'm having wicked start up problems. I press the power button on my tower and the fans start up, as do my various disk drives, but i get no signal to the monitor (which is definately plugged in) and the tower just starts to beep for 2 second intervals over and over again. Even if i leave it on, as i have for hours, it continues to beep. I have replaced my power supply and the battery on the motherboard, as was suggested to me by various computer people at my school, but it has not worked. Any help would be fantabulous.