AnimeMusicVideos.org

I've been using Premiere 6.5 for a while now, but recently there have been these boxes on the video when I export it, like bits of the previous clip are hanging on too long. I don't think I did anything to it, though. Has anyone else had the same problem or know how to fix it?

Thanks for the help! I deleted the project file and all the other files relating to the video because I kept getting low disc space errors, but I'll try the other stuff when I get home tonight. Thanks again!

I want to enter an AMV I made into Jacon's AMV contest, but it's an avi file that uses the DivX codec. I've already tried to convert it using TMPEnc, Adobe Premiere, and Aviedit, but none of them worked. Does anyone know how to convert it, or possibly what I'm doing wrong?