Weird problem with the Rifftrax.

[Droosies]

I'm in Audacity right now trying to sync up ROTJ with the Rifftrax, and for most of the movie, it synced perfectly, until it got to "You're wrong...I'll soon be dead."  When I got to this line, the audio was horribly off sync.  I can't find anything wrong with the last line.  I am using the updated ROTJ (the one with Hayden Christensen superimposed in the ending).  I can't see why this would make a difference as the first hour and a half of the movie is perfect.  Is anyone else having this problem?

EDIT:  For some reason the rifftrax and movie audio get split up by almost an entire minute.