I just installed Fedora Core 4 64bit and my audigy 2 zs is not working. I know that it worked when I had Fedora Core 3 32bit. Does anyone have an audigy working with a 64bit kernel and if so, do you know where I can get working 64bit drivers?

Hello, I have FC4 for x86-64 and I had probably your same problem. I've had this problem before with my other system that had a Live! card in it from as early back as 1999. The SB cards from Live! and beyond support digitial output. Depending on what the distribution does and seemingly by chance, it can startup in digital mode when you have analog speakers or analog mode when you have digital speakers.

In my case, FC4 started with digital mode on. I used alsamixer to navigate to the item Audigy Analog/Digital Output Jack (you may have to scroll to the right). Now what took me to figure out is that the arrow keys don't affect toggle buttons. To do that you need to use the M key. Anyway, make sure any muting is off and volumes are set to something reasonable and play with the output jack and it should work. If you've the snd-emu10k1 driver set up properly and it is running it should work with just playing around with settings.