(cross-posting on Fedora and MadWifi lists) I just upgraded from FC5 to FC6. Updated to the latest SVN (1782), but I can't get madwifi to work. Looking for suggestions, as I had to move my computer into the basement to connect via wire. I get the same sorts of errors if I use the builds from freshrpms or livna. # modprobe ath_pci WARNING: Error inserting ath_hal (/lib/modules/2.6.18-1.2798.fc6/kernel/drivers/net/wireless/ath_hal.ko): Invalid module format WARNING: Error inserting wlan (/lib/modules/2.6.18-1.2798.fc6/kernel/drivers/net/wireless/wlan.ko): Invalid module format WARNING: Error inserting ath_rate_sample (/lib/modules/2.6.18-1.2798.fc6/kernel/drivers/net/wireless/ath_rate_sample.ko): Invalid module format FATAL: Error inserting ath_pci (/lib/modules/2.6.18-1.2798.fc6/kernel/drivers/net/wireless/ath_pci.ko): Invalid module format -- Steve