Ok...My pc has been a real bitch, lately. I'm going to have to check it for viruses and whatnot (whenever I stop procrastinating) but, yesterday, something weird happened. My pc is connected to my mom's pc, which is way on the other side of the house, by a wireless network. I was sitting here using mine, while hers was running, and all of a sudden mine completely shut down on me, out of the blue. As it was coming back on, I heard mom's pc beep. I went to check it out and saw that hers had shut down and reset at the exact moment that mine did.

Nothing else in the house even flickered, so it definitely wasn't a power surge. What would make that happen?