Woah, those are "fields", you should put "no fields" or "deinterlace every frame" when you render the video...
(can't remember if it's called like that actually right now, but close...)
Btw, i use 720x480 / render template 0,9091(NTSC DV) / frame rate 29,970(NTSC) / Render quality=best / motion blur type=Gaussian....then with virtualdub... i compress it using DivX codec 4.02 ...i know i should render using uncompressed avi...but was too big the file. 10 seconds = 400 Mb and it's a 8 minute video