I wanted to see what RAM I had so I could upgrade. I took it out and reseated it. Now my computer powers up, but my monitor remains blank! Here's what I think I've confirmed... Power supply seems to be ok, power supply fan is on, light on mother board is on. Booting up, the harddrive light activates but then remains off (does not blink). I have tried reseating both RAM cards, my video card, even my cpu. Check connections, all seem ok. I know my monitor works because I plugged my laptop into it. I'm not sure where the issue is. Before when I turned on my pc, it would beep once, now there is no beep. Doe this indicate something? HELP! I'm poor and can't afford a repair!