I previously posted about getting no sound on a Dell Optiplex GX150. I was not able to get it working on that machine. So now I'm trying another Dell machine. This times it's a Precision 450. Unfortunately it's trying to use the same audio drivers and I'm getting the same results. In /var/log/messages I get: Jul 30 13:08:02 sylvester modprobe: FATAL: Error running install command for sound_slot_1 An lspci shows me this: 00:1f.5 Multimedia audio controller: Intel Corp. 82801DB (ICH4) AC'97 Audio Controller (rev 01) modprobe.conf has: alias eth0 8139too alias eth1 e1000 alias snd-card-0 snd-intel8x0 install snd-intel8x0 /sbin/modprobe --ignore-install snd-intel8x0 && /usr/sbin/alsactl restore >/dev/null 2>&1 || : remove snd-intel8x0 { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; }; /sbin/modprobe -r --ignore-remove snd-intel8x0 alias usb-controller ehci-hcd alias usb-controller1 uhci-hcd alias ieee1394-controller ohci1394 Alsa versions are: alsa-lib 1.0.3a-2 alsa-lib-devel 1.0.3a-2 alsa-utils 1.0.3-1 I can get on alsa's list for help, but wondering if anyone has tried FC2 on a Dell Presicion 450? Thanks, James