So i ended up adding more ram to my computer 256 to be exact, and updated winodws through its updater. During hte update, the computer froze, and wouldn't unfreeze, so i turned it off manually. At this point, there was no signal from the computer to the monitor, so i brought another one, and nothing. I took out the ram previously added, and once again, nothing. Switched the ram around, took out the power for a few minutes and still nothing. Its a xp computer, pretty old, but i dont get what happened! Any ideas?