On Sun, Jun 6, 2010 at 3:14 PM, John Thomas <gmane-2006-04-16 at jt-socal.com> wrote: > 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb > AC'97 Audio Controller (rev a1) It is possible that your problem is related to this bug: http://bugs.centos.org/view.php?id=4335 ( sound and system problems in CentOS 5.5 with Nvidia controllers ) In any event, it would not hurt to try the workaround in there and see what happens. Edit /etc/modprobe.conf to have the following line and reboot: options snd-hda-intel index=0 enable_msi=0 Akemi