Since posting this bug report I have replaced my PC with a Toshiba Satellite P200-155 laptop. Kubuntu Feisty installed effortlessly and most things work out of the box, including the wireless (Intel 3945ABG) and KNetworkManager works fine with the same wireless access point using exactly the same settings!! Go figure...
Maybe the wireless extensions are different between drivers and networkmanager is having trouble enabling encryption on some???
Since posting this bug report I have replaced my PC with a Toshiba Satellite P200-155 laptop. Kubuntu Feisty installed effortlessly and most things work out of the box, including the wireless (Intel 3945ABG) and KNetworkManager works fine with the same wireless access point using exactly the same settings!! Go figure...
Maybe the wireless extensions are different between drivers and networkmanager is having trouble enabling encryption on some???