nvidia wolfman demo - shading errors

Has anyone tried nvidia’s wolf-man demo on the geforce3? I tried it on two machines (with 27.50 and one older driver) and there are errors on the wolf’s hands and face…it looks like the texture is getting washed out.

Also, in the grace demo, the bubble billboards lack their texturemap.

Any ideas why this might be happening? Is it not supposed to work without a Geforce4?