duke nukem- lotb

[jonc2006]

im having a graphic problem in level 4 (Get Wet,i think) right off the start your in water and when i go under, it gets really really chopy animation. i dont know why its doing this because i have duke ttk on my pc as well and underwater scenes run fine. this is what i have right now-

Plugin: Pete's DX6 D3D Driver 1.1.76
Author: Pete Bernert
GFX card: ATI MOBILITY RADEON Xpress 200 Series

Resolution/Color:
- 640x480 Window mode

Textures:
- R8G8A8A8
- Filtering: 6
- Hi-Res textures: 0
- VRam size: 0 MBytes

Framerate:
- FPS limit: on
- Frame skipping: off
- FPS limit: 63.0

Compatibility:
- Offscreen drawing: 3
- Framebuffer texture: 2
- Framebuffer access: 4
- Alpha multipass: on
- Mask bit: on
- Advanced blending: hardware

Misc:
- Scanlines: off [0]
- Unfiltered FB: off
- Dithering: off
- Screen smoothing: on
- Full vram: on
- Game fixes: on [00000a21]