Nevermind. Figured it out. I got the tip from a Linspire messsage board, of all places. I commented out the following in /etc/modprobe.conf #alias snd-card-0 snd-intel8x0 #options snd-card-0 index=0 #options snd-intel8x0 index=0 #remove snd-intel8x0 { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; }; # /sbin/modprobe -r --ignore-remove snd-intel8x0 And replaced it with... # ALSA portion alias char-major-116 snd alias snd-card-0 snd-intel8x0 # module options should go here # OSS/Free portion alias char-major-14 soundcore alias sound-slot-0 snd-card-0 # card #1 alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss Rebooted and now the sound is clear. No more crackling. No more hissing. Very weird. After 2 years of ignoring this problem and then hoping it went away with CentOS 5, this fixed it. Thank you, Linspire users. :) Preston _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos