This might be a really stupid question, but what exactly does "line of sight" mean with respect to wireless networks? I hear about how great wireless networks are because you can use pc's all over your house without any wires. If I put an access point in my kitchen, and then want to use my notebook pc (with wireless card) in the living room ... which I cannot see from the kitchen because there are walls in between ... then I would say I don't have "line of sight". But that would be ridiculously limiting for wireless networks. I've already been told it will probably work ok, but what I'm really looking for here is a better understanding of what "line of sight" means in this context. Thanks.