On 10 Jul 2007, at 16:54, Tarik Bilgin wrote: > > Anyone have any ideas? My Powerbook is an Aluminium G4 1.67 with > Airport Extreme card. > Looks like I've solved it. My Powerbook was bought in the US and I understand the regulations there don't allow certain of the higher channels specified within the standard to be used. My UK Base Station was operating on channel 13 by default. Changing this to channel 9 allowed it to be visible to my US Powerbook. -- Tarik