Retarded

We've had internet access for a couple days now and I've had some trouble with World of Warcraft. When I downloaded the patch on friday, it said I had to reinstall WoW. So I did, and it still didn't work. Finally, today I just copied it from John's computer onto mine and it worked. I don't know why I didn't think of this before, John even suggested it to me. I'm retarded.