Direct 3D vs. Software in Myst Exile

Recently got a new machine, maybe you guys can tell me if this is an Open GL issue??

Athlon 2000
512 PC3200 Ram
Asus 8xAGP Motherboard
Radeon 9700 Pro. Soundblaster 5.1

Updated all drivers and patches… Cannot get Myst Exile to run in Direct3D mode. Many other people have gotten their copy of Exile up and running Under XP… I can run it under software mode, but would like to get it going through the card…
Thanks for any help…