The problem is that there was more than one electrical path to the PC. You've lost the discussion since you had other electrical paths for damage to occur.
Sorry to hear about your loss.
here's a question, I have a very fancy surge protector here . . . and my motherboard recently died right after a big electrical storm. my question is, since these surge protectors guarantee to protect you, how do you prove it didn't?? and get reinbmursed for the fried mobo? --fj
ps just an aside, now I can't connect to my cable modem thru the surge protector, i have to go direct to the computer. not sure if it's the cable or the box tho . . .