lol plague, I suggest you stop listening to him as he is either BSing you cause he can or has no idea about computers.
If you are indeed making it up as we now have 3 stories (different ones at that) drop it plz.
It is very rare for a computer to catch on fire, 1 because there is no flamable objects inside of the computer, besides plastic which melts quickly.
2 there are fale safes to avoid a fire from acually starting.
It is possible for a computer to be struck by lightning and blow a circuit, usually if there is one the 56k modem, as phone lines are struck more often then power lines, and it stops there, saving your computer. If it went through the powerlines it would generally pop the fuse inside the pwrsupply or blow another circiut on the motherboard.
One of the more common problems with older computers (even current ones) someone spilled liquid on the keyboard, which causes the keyboard fuse on the motherboard to pop, which will sometimes stop the motherboard from posting.
Software will not cause a computer to start on fire, or even burn out, unless it was faulty, or old and faulty.
The only viruses that could crash a motherboard or video card will not start a fire, but only flash the bios of the two making them un-usable, those viruses are no longer in circulation and if ever seen the motherboards will halt the boot process.
The only instance of a fire that I have seen in my 4yrs as a computer tech was when my boss accidently got the black wires facing the opposite directions on an old AT motherboard and pwr supply, thus blowing the power supply, making a loud pop sound closelt resembling a gun shot, and filling the room with rancid smelling thick (almost liquidy) grey smoke. I have also seen holes in sound cards, modems, Memory sticks, cpus, pwr supplies, motherboards and harddrives, all resulted by being hit directly by lightning, (i live in FL go figure) But all other parts were intact, but replaced for fear of defective parts after being hit.
Even the cooling system with the new motherboards out will start beeping and turn off the machine before it fries any compnents, this goes for the motherboard temp as well as cpu temp.
I think the guy disconnected you or lost his connection while you guys were playing.