I wanted to post a tutorial on youtube. It required I patch together several .avi videos created with CamStudio. To see if I could edit my video clips with Sony Vegas, I loaded a clip into Vegas, normalized the sound track, and then 'rendered as .avi' the modified video clip. When I played it back on NERO the video picture shook up, down and around by about 1mm at 10+ shakes a second. I then played the same video clip on the CamStudio Player, and the screen was black through the whole playback time. The audio played ok on both players. Does anyone know what has gone wrong in Vegas to cause such a problem in the rendered video?