Unix Process Failed

Im having this problem ever since im Using Unix. Please help.Im using Linux Red Hat 7.0. 2.2.6. My Problem is. Whenever i close my unix before the system goes to Halt mode and stoping all md device, this Process shows me as fail. :

Saving Mixer settings modprobe: modprobe: can't locate module sound-slot-0 modprobe: modprobe: can't locate module sound-slot-0 modprobe: aumix: error opening mixer----- [ FAILED]

my soundcard is Creative Sound Blaster Audio PCI
Location1(Pci bux 0, device 9, function 0).

Any idea whats the wrong thing is?

Anyway do tell me in details how can i set my audio and where can i get an complete and detailed Book on Red Hat 7.0

Thanx.

You need to alias sound-slot-0 to the sound driver for your card. check your /etc/conf.modules. if you don't know which driver to use, the best way would be to use "sndconfig" program. It will probe soundcard and edit /etc/conf.modules for you.

You can also try /etc/rc.d/init.d/sound start

HTH