I brought home a new 12-inch powerbook yesterday and conencted it to my airport extreme network. Lo and behold, the signal fluctuated from as low as one "wave" on the icon bar to as much as 2/3 of the bars - it never maxed out at the "full signal." I used to have a regular airport set-up in the same location and was able to get a full-strength signal anywhere in my house. Does anyone else have an airport extreme, and if so, are you seeing a similar signal pattern. Could it be climactic in some way? Anyway to boost the base station's signal? Also, does the signal strength affect the rate of data transmission - i.e., is a weak signal slower than a strong one?