Two problems at once. First one:

I use ZSNES to emulates SNES. Well, it was working fine, and then all of a sudden I lost sound. Nothing. All my other sound (Winamp) works fine. I tried checking the sound menu, and sound is enabled. None of my SNES roms have sound. Any ideas?

Second one:

I use Visual Boy Advance 1.7.1 for my GBA stuff. Well, it has sound, but it sounds like crap. It's all gargly and staticy and stuff like that. A trip to the sound menu didn't fix anything. And, once again, it happens with all my GBA roms. Help?