If I am using my SBAWE64 Value ISA to play MP3's with WinAmp for example, no other application can play sound (like my email notification program) and I don't even get Windows sounds for things like error messages.

I just installed the latest drivers, so that isn't it. Is this a configuration issue or a limitation of the card itself? I was thinking about getting a new card anyway to move to PCI. Any ideas?