some questions: 1. my wireless connection is not very strong in comparison to my friend's. he can pick up weak signals and can get good connection out of it when i can't even detect the same signal. we often have class together and he's always on the interwebs while i'm stuck with nothing. he uses a white macbook and i'm on a 15" macbook pro. anyone know what the problem might be? 2. there isn't anything wrong with taking out the battery and using the adapter for power while i'm using the macbook pro at home right? thanks a bunch in advance.