Certain elements of the game will not appear, for example:

The cursor highlighting blue over special Force Pushable/Pullable objects.

The huge invincibility beam where you fight Desann does not appear (but if you go through where it should be, you still get invincible).

I haven't noticed anything else wrong yet, but I'm sure there's more.

[Edit: Oh, and I am using the "approved" 23.11 drivers with my GeForce 3.]