Recently I've been having issues with my laptop and dual monitors. I have been plugging my laptop into the DVI port of external monitors. After a few days, my external monitor would lose signal if I selected to show the desktop only on monitor 2, but now, whenever I plug in my second monitor, both my laptop monitor and the external monitor go black. I've had this happen with two monitors now, and I can't think of what could cause this. Can repeatedly plugging in a monitor break it?