Eh - drunk. Got 2 computers linked through a usb cable. Both are connected to a kvm switchbox that allows me to press a button and swap between the both. One monitor, keyboard and mouse controls both. Perfect really for all sorts of online use. Pissed one night and decided to listen to music through headphones. Connects the headphones to the proper slot. Can't remember much after that but I know it was working fine. Morning arrives and I find one computer is off? Will not come on wotever I do. I eventually find I had worked loose the mouse cable and it might have shorted against the case. This really should not be enough to knock out a computer. Ain't delved any further yet but am pretty sure the mb is shot which is incredibly annoying. Ok I was pissed but even so this could happen to anyone. Fragile is not the word. .