I just picked up a copy of Tribes, and the ntcompatible list says it works. It installed ok, but when I try to launch it, it crashes back to the desktop with no explanation. I recently installed SP1. My Banshee works fine (if you call random little purple lines "fine"), and the Live! drivers are installed ok.
My system:
Abit KA7 w/ Athlon 650
160 Megs RAM
20, 11, and 4 gig hds (IDE, IDE, SCSI)
5x IDE dvd-rom, 6x4x16 scsi cdrw
Adaptec 2940U2W scsi card
Diamond Monster Fusion AGP
Sound Blaster Live!
D-Link 530TX NIC
3com Etherlink III
USB Logitech MouseMan+