I ditched my A3d card simply because it didn't do jack in Windows2k.
If you have to use Windows 2000, do NOT install the beta drivers. Well, you can, but don't be surprised if your gameport doesn't work afterwords. THe default drivers seemed to be just fine.. you're not going to get a3d sound anyway, but after I installed Aureal's with my mx300, goodbye gameport.
It's a good card and I won't throw it out because I have a glimmer of hope for A3d to work under Windows 2000. Doubtful, but until then I keep it. This damn SBLive EAX sound sucks, but it's better than nothing.