hi everybody, i found a cause for this "bug", kismac not loading the driver. it seems that the airport driver is indeed in use on a couple of systems. however i was unable to figure out, why. you can easily identify such systems, by executing "ioreg | grep AirPort" (case sensitive). if there are two AirPortUserClients, then you such a system. now the question is, what could that be? i know one is the menu extra, which will be killed when you start scanning with kismac, but i could not figure out what the other one is for. i would be glad if anyone could help me with that. thank you guys. mick p.s. i will probably release 0.05c3 later, where you can at least override kismacs decision to not load the driver, however this will cause the loss of the airport connection even if you quit kismac.