i have manage to use my acx card thks to this page: https://launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/78513
here what i've done: # cd /usr/src/ # wget http://lisas.de/~andi/acx100/acx-20070101.tar.bz2 # tar xjvf acx-20070101.tar.bz2 # cd acx-20070101 # make -C /lib/modules/`uname -r`/build M=`pwd` # lsmod | grep acx # modprobe -r acx # cp /lib/firmware/`uname -r`/acx/default/tiacx111c16 /lib/firmware/ # insmod ./acx.ko -- ACX111-based wireless network card doesn't work with Feisty kernel https://launchpad.net/bugs/81812 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs