Walkthrough Problem

[sjsl]

Created a couple of walktarounds the other day for a large model. They came out ok, got that shimmer thing going though, and today when I moved the camers back the subsequent avi was whacked. All it showed was crazy lines and pieces of the image. I redid the avi from scratch and the same thing has occrred.

Any thoughts would be appreciated. I'm stumped. I even tried three diff codecs. Nothing just ****.