Since I'm a newbie, (and haven't used RedHat), someone else might have some more knowledge on the subject. But let's try this out:
Install sndconfig, if you haven't already. Here's a link to it:
http://www.redhat.com/swr/i386/sndco...1.i386_dl.html
Open up a shell and get into root.
cd into usr/sbin
Run "sndconfig --noprobe" (without the quotes)
(this will run sndconfig without trying to find the driver for your card)
It takes a bit to load up. Be patient...
After it loads, try using the old, generic Sound Blaster driver. Not sure on the settings for you, but mine were:
I/O: 0x220 , IRQ: 5 , DMA: 1 .
If that passes the sound test, load up your multimedia player of choice and try playing something. If that works, reboot and try playing something again.
Send a reply with what happens.
-CC