> From: James Devenish <[EMAIL PROTECTED]>
> I don't think there is any widely-known problem with the latest
> PowerBooks, unless there is a problem related to Enterprise WPA. I
> see that recent updates to Mac OS X 10.4 have included some changes
> to Apple's WPA compatibility. Perhaps check what version the PowerBooks
> are running.

That was the first question I asked, but they have all installed all the
latest updates including the recent Airport update.

> Also, you could try using some software like iStumbler
> <http://www.istumbler.net/>. For instance, it will show the number of
> networks in the vicinity, their strength, noise, carrier frequency, etc.
> It might highlight issues with fading signals or multiple base station
> frequencies.

Good idea James - I'll try that out if they tell me they are still having
problems.

Thanks to Glen, Shay, Gordon and others for their suggestions as well.

Ciao.

-Mart