So I moved into a new place and my roommate has a laptop that accesses the internet through Wi-Fi. I went to the Mac dealership and asked what I need to get on the net? Buddy sold me an Airport Express and said it was basically plug-n-play. Well by now I'm a few hours in and very frustrated. My Airport card doesn't sense it's there even though it's like 2 feet away and am now completely lost on what I need to do. So I have a few questions...will I just be able to hop onto her Wi-Fi connection or will I have to run an ethernet cable from her computer to the AP Express and then go from there or am I just completely on the wrong path? Oh please help!