Shape Animation Rewinds and Choppy

Has anyone overcome this issue?

I'm animating a slowly rotating Water Wheel for a Mill. I am working in Milkshape.

I create the spinning wheel animation in Milkshape and it plays back as expected. I export it to .dts.

When I pull it up in the show mod it plays through the animation as expected but once it reaches the end frame, the animation rewinds. It doesn't play in reverse at the same fps, it rewinds very quickly through the entire animation then it starts over.

Any clues on how to tell it to jump to frame one without rewinding through all previous frames?