capturing a double exposure

[puttster]

when I capture my golf swing from my JVC digital camcorder it shows up on my monitor as a double exposure. Looks like I am swinging two clubs, one a foot ahead of the other. This happens when I use firewire (AVI) or composite MPG into a Hauppauge 150.

A friend told me it needs deinterlacing. In the manual is a screen with a "deinterlace" checkbox, and there is talk about "field order" but if they are in my program (Moviefactory 3) I can't find them.

The scene was shot at 1/2000 and at my age that shoud be plenty fast! Any ideas on how I can sharpen up my video?

Thnaks in advance!