My system runs certain games alright with this card, some better under 98 and some better under xp. For some reason Halo doesn't run at all under 98 on my setup but it runs fine on XP. But the sound is garbage. I found a cfg file that lists all the vendors for all the supported cards and while the Turtle Beach isn't among them, it does have a few cards that run on the a3d API. I see no reason that it shouldn't work on my card. Question is how do I get the game to acknowledge this. Is there a config file somewhere that I can trick the game into selecting my card as a vortex card or something else so I can test this? Or is there a general best practice for rigging halo to work with any a3d card? Any crude hack would be much appreciated because at this point I'm just playing it with eax. I can always undo the changes if it doesn't pan out buy any tricks for forcing my card would help. Thanks.