Wishlist: Transparency Multisampling

I've had only one issue so far. A small square sometimes appears in the top-left corner of the screen. This region show the level's geometry without textures; instead, it shows the blank white geometry with vertex lighting. This may have been due to my messing around with the Phong shading option in dgVoodoo or something else.

Here's an unprofessional demo.
https://www.youtube.com/watch?v=JYiAPZ2sis4

Edit: One of the dgVoodoo updates fixed the aforementioned issue.