I've installed Kismet from the currnet sources on two older laptops. Using FreeBSD 6.2 and an Orinoco Gold Classic. This combination works fine with Kismet if I disable channel hopping. If I enable hopping it only sees a few packets than stops hearing.

If I set the defaultchannels to multiple instances of the same channel as the initial channel, it will still work if channelhop=true. The suggests the problem only occurs if thechannel number is changed.

The card works fine for regular wireless access.

The same card on a slightly newer laptop running Ubuntu Linux Breezy works properly, including channel hopping.