Everything is plugged in correctly and I know that for a fact before I was the one that put it together, lol. Ive tried putting the 2Gb stick of DDR2 ram in different ram channels, which didn't work. Ive tried taking out the CPU and putting on new thermal paste, still the same problem. Ive unplugged everything that and plugged it back in. The graphics card is a nVidia Geforce 4 Ti-8x AGP graphics card, it's in the AGP slot. Ive tried taking out the graphics card and plugging in my monitor to the VGA port on the on board video but it's still the same result. I'm really not sure what the problem is.