Comments

Securityman wrote on 3/8/2010, 3:46 PM
 Does it jump around if you burn your project to a DVD? Is your computer fast enough to handle the processing of the program? You may need to update your MP4 codec. Try to export as an AVI and see what happens.
Securityman wrote on 3/13/2010, 12:19 PM
  All I can think of is that you had your output resolution set higher then your computer could handle. Get more ram and that may help in the future. You can set your display resolution --- File,Settings, Program settings, Video/Audio , Movie Display (set to "half-resolution). 

This solved my problem.