My system: Ubuntu Intrepid beta linux: 2.6.26-5-generic alsa: 1.0.17 (alsa-source_1.0.17.dfsg-2ubuntu1) gcc: 4.3.2 (FWIW) I followed the HOWTO located in http://linmodems.technion.ac.il/packages/ltmodem/11c11040/HOWTO-Agere-11c11040-HDA.html successfully until step 7.3 root@emma:/usr/src/agrsm-20080721# modinfo agrmodem filename: /lib/modules/2.6.26-5-generic/extra/agrmodem.ko license: Proprietary description: Agere Modem Controller driver author: Agere Systems Inc alias: usb:v047Ep2892d*dc*dsc*dp*ic*isc*ip* alias: usb:v047Ep2828d*dc*dsc*dp*ic*isc*ip* depends: snd vermagic: 2.6.26-5-generic SMP mod_unload modversions 686 When I tried to load the module I got: root@emma:/usr/src/agrsm-20080721# modprobe --force-modversion agrmodem FATAL: Error inserting agrmodem (/lib/modules/2.6.26-5-generic/extra/agrmodem.ko): Invalid module format Any help with this ? Cheers, maykel