I can see the quality in the floor textures change, so I know bilinear is on and helping there. The HUD on GlindeN64 Bilinear looks exactly like Glide64 Point Sampled, and there is no difference when I switch back and forth. The HUD in Super Mario 64 (as well as menu screens, text, 2D elements) seems to be completely unaffected by picking the Bilinear Option. I'm using GlideN64 rev.1111a76 (but also have GlideN64 4.0 which I switched back and forth to for this test)