I have (3) BP6 systems working with GeForce2 MX 200, MX400, and Personal Cinema versions. All work OK with WinXP-Pro using the latest Detonator Drivers from the Nvidia website
I am currently using an Inno3d Geforce2mx400 PCI and its fine. The fan died and I just took it off. I hope it'll be ok in summer. If not I'll just have to upgrade.
Dual Barton Mobile 1.8ghz
Venice 3000+ @ 2.6ghz
lots of BP6s and two VP6s all apart currently