Ok, So the computer got the blue screen of death, and i was planning on fixing that but when I wake up my sister has decided to open the side and dust the computer...So now when i connect the desktop to the monitor the computer first flashes orange the second i hit the power then turns green makes some beeps then runs normally or so it seems. The only problem is that the monitor isnt getting a feed and remains in powersave mode; also, the UsB ports dont seem to be working because the keyboard doesn't work or anything else to my knowledge... could my sister have unplugged anything? the numbers lit up on the front of the comp are 3 and 4