Hi, I purchased the new Apple Airport Extreme and the Airport Express. They are both up and running by im confused as to whether one or both should be set in bridge mode. I live in a 4 story town house. The main floor (2nd floor) has the Airport Exteme. Oddly enough, even with the new taller Airport Extreme it doesn't get great service on the floor above. I bought the Airport Express to help extend the network. Can you tell me how I should have these setup? I have the Airport Extreme and Airport Express both in Bridgemode right now. I don't fully grasp the distinction between the settings so any input is appreciated. Thanks!