Are you still getting the problem? I suspect that you need to upgrade your audio drivers. Have you had this computer (meaning, have you had windows 2000 installed with this sound card) running for a while? Have you done any upgrades/updates lately?

My (somewhat inconvenient) suggestion is to disable your sound card (from device manager...right click my computer, properties, system, device manager) and see if the computer crashes again.

Win2K has the blue screen of death?