That's what I was worried about; I was hoping it was just something in the OpenGL implementation, not a driver bug.

What happened:
Sprites and textures render incorrectly, not at all, or use the wrong sprites/textures.

What I expected:
Sprites and textures render normally

Details:
It seems to always happen when I open the game to the main menu, and the artifacting gets significantly worse when I load a save ...