I upgraded madwifi drivers from ATrpm: madwifi-2.6.16-1.2122_FC5 madwifi-hal-kmdl-2.6.16-1.2122_FC5 madwifil-kmdl-2.6.16-1.2122_FC5 all versions are 0.9.0-23.rhfc5.at (previous were 0.9.0-20.rhfc5.at) Now when I start kismet I get (it was working before upgrading, i.e. one hour ago!!!) kismet Server options: none Client options: none Starting server... Waiting for server to start before starting UI... Will drop privs to kismet (100) gid 101 No specific sources given to be enabled, all will be enabled. Enabling channel hopping. Enabling channel splitting. Source 0 (DLinkG650): Enabling monitor mode for madwifi_ag source interface ath0 channel 6... WARNING: ath0 appears to not accept the Madwifi-NG controls. Will attempt to configure it as a standard Madwifi-old interface. If you are using madwifi-ng, be sure to set the source interface to the wifiX control interface, NOT athX FATAL: 'get_mode' does not return integer parameters. Any help??? -- Antonio Montagnani Skype : antoniomontag