Why no refresh option?

[Matt Warnock <mwarnock ridgecrestherbals com>]

Can anyone explain why there is no refresh button?

Running Ubuntu 10.04, moving from home to work and vice versa.  Only way
to get the list of available Wifi networks to refresh is to turn
networking off, then on again.  I've read that it should automatically
refresh, but in my experience, it doesn't.

Or is there something I should be doing differently?
-- 
Matt Warnock <mwarnock ridgecrestherbals com>
RidgeCrest Herbals, Inc.