Okay. Last night, I installed a new Power Supply into my PC, because it was shorting out. Well, for about 12 hours everything was working great. Games played awesome, sound was great, everything fine and dandy. Then, I turned it off to go to bed. I wake up, and go to turn on my computer. No response. None. When I get back from school, it's still doing it, so I uninstall the Power Supply, and put it back in. Now, the computer will boot, but I can't get any response from the monitor. I've tried using the on board video card, and the 2 extra ones I had lying around. Nothing working. On boot, the monitor light turns green like it's getting a signal, but then just turns amber again. With the on board card, nothing at all happens. Any ideas?