the other day i panicked because i thought my comp died, black screen but i could see the mouse pointer moving around. I had just fixed a computer with that problem recently, but i had to put a new hard drive in and format it, but i had lent out my windows disks so i didnt have a way to format it. So im sitting there contemplating blowing my car and or AC money on a new one, then realized the monitor cable had come undone on one side, so my right monitor was out, and it had somehow been switched to the master monitor, login screen was there. lol