I've decided to switch to the onboard sound on my A8N-E motherboard because something weird was going on with my Soundblaster Audigy 2 ZS (sound was "crackling"). So I uninstalled all the Soundblaster drivers, took out the card, and switched everything to the Realtek 97. I've enabled "A97 Audio" in my BIOS and installed the drivers for it, and according to the Realtek connectivity tests everything is up and running. And yet I still don't hear anything from my speakers. Realtek AC97 is enabled and everything as my default sound device.