hi, I have a ati 256mb agp 8x x800, I also have an asus dragon mobo, and a 3.4ghz p4, 1gb mem. about a month ago it just stopped working... when I turn on my computer the computer doesn't send a signal to my monitor, the monitor is fine because I tried another computer on it, and the computer that doesnt work used to work perfect on that monitor. the fan on my x800 still works. everything seems fine, but obviously its not? what could be going on?