I have this same problem only with 
Video Editor. Everything was working fine until I downloaded the latest updates to DVD Copy and Video Converter.
I tried running the 'repair' program with no results.
I have Windows XP.
I don't know exactly what you mean by my output settings, but if this helps:
 - General - Project: Automatically open last edited project
                  Preview quality: Medium (however I choose No Preview to speed things up)
 -Edit - Timeline: Show sound waveform
           Default durations: Transition 2.0 Image/Color 5.0
            Scene detection sensitiviy: 0.5
- Processing - Resize type: bilinear    Conversion priority: normal
- Environment - Temp folder in C drive 177Gb available
                       Undo steps: 25
I am trying to put together six MP4 files for an iPod.
I've attached a screen shot of the error I am getting.
Would uninstalling the program and re-installing it fix the problem?
Thank you,
Jim 
