i just got my new 15" powerbook to replace my 6 month old ibook. both are new machines with factory installed airport extreme cards. my ibook got probably twice the range that my new powerbook got on my 802.11b linksys router... anyone else notice this when switching from an ibook to a powerbook? think its the metal chassis that makes the difference in the range? think the antenna cable might be seated loose cause the signal strength is waaay intermittent. anywho, thought i'd ask here before calling! cheers!