Greetings, All: Trying to get this card to work on a Dell Inspiron 1720. When I followed Critchlow's steps, I get this (1) ./configure : works OK (2) sudo make : works first, then bonks out the following: <<<<<<< make[2]: Entering directory `/home/apastern/alsa-driver-1.0.15rc3/misc' make[2]: Leaving directory `/home/apastern/alsa-driver-1.0.15rc3/misc' make[1]: Leaving directory `/home/apastern/alsa-driver-1.0.15rc3' make -C /lib/modules/2.6.22-14-generic/build SUBDIRS=/home/apastern/alsa-driver-1.0.15rc3 CPP="gcc -E" CC="gcc" modules make[1]: Entering directory `/usr/src/linux-headers-2.6.22-14-generic' CC [M] /home/apastern/alsa-driver-1.0.15rc3/acore/pcm_misc.o In file included from /home/apastern/alsa-driver-1.0.15rc3/acore/pcm_misc.c:2: /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c: In function ‘snd_pcm_limit_hw_rates’: /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:437: error: ‘snd_pcm_known_rates’ undeclared (first use in this function) /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:437: error: (Each undeclared identifier is reported only once /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:437: error: for each function it appears in.) /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c: In function ‘snd_pcm_rate_to_rate_bit’: /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:465: error: ‘snd_pcm_known_rates’ undeclared (first use in this function) make[3]: *** [/home/apastern/alsa-driver-1.0.15rc3/acore/pcm_misc.o] Error 1 make[2]: *** [/home/apastern/alsa-driver-1.0.15rc3/acore] Error 2 make[1]: *** [_module_/home/apastern/alsa-driver-1.0.15rc3] Error 2 make[1]: Leaving directory `/make[2]: Entering directory `/home/apastern/alsa-driver-1.0.15rc3/misc' make[2]: Leaving directory `/home/apastern/alsa-driver-1.0.15rc3/misc' make[1]: Leaving directory `/home/apastern/alsa-driver-1.0.15rc3' make -C /lib/modules/2.6.22-14-generic/build SUBDIRS=/home/apastern/alsa-driver-1.0.15rc3 CPP="gcc -E" CC="gcc" modules make[1]: Entering directory `/usr/src/linux-headers-2.6.22-14-generic' CC [M] /home/apastern/alsa-driver-1.0.15rc3/acore/pcm_misc.o In file included from /home/apastern/alsa-driver-1.0.15rc3/acore/pcm_misc.c:2: /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c: In function ‘snd_pcm_limit_hw_rates’: /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:437: error: ‘snd_pcm_known_rates’ undeclared (first use in this function) /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:437: error: (Each undeclared identifier is reported only once /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:437: error: for each function it appears in.) /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c: In function ‘snd_pcm_rate_to_rate_bit’: /home/apastern/alsa-driver-1.0.15rc3/acore/../alsa-kernel/core/pcm_misc.c:465: error: ‘snd_pcm_known_rates’ undeclared (first use in this function) make[3]: *** [/home/apastern/alsa-driver-1.0.15rc3/acore/pcm_misc.o] Error 1 make[2]: *** [/home/apastern/alsa-driver-1.0.15rc3/acore] Error 2 make[1]: *** [_module_/home/apastern/alsa-driver-1.0.15rc3] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-2.6.22-14-generic' make: *** [compile] Error 2 usr/src/linux-headers-2.6.22-14-generic' make: *** [compile] Error 2 >>>>>>>> Output of cat /proc/version is: Linux version 2.6.22-14-generic (buildd@crested) (gcc version 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2)) #1 SMP Sun Oct 14 21:45:15 GMT 2007 Output of gcc --version is: gcc (GCC) 4.1.3 20070929 (prerelease) (Ubuntu 4.1.2-16ubuntu2) Copyright (C) 2006 Free Software Foundation, Inc.\ GCC and Kernel compiler version match ... so that's not it. I cannot account for the lines "Error 1, Error 2..." or why snd_pcm_known_rates variable is undeclared. Already installed kernel-package, dpkg-dev, libstdc++-v3, linux-libc-dev, alsa-source, alsa-utils, gnome-alsamixer, libasound-2-dev, linux-sound-base .... to my knowledge those are all the sound development libs available. Yet, I Can't get past the make step ... any ideas?