some avi's have 0 sized chunks that we were not handling properly. (Need to basically rewind the avi to previous frame in this case) http://www.cs.umn.edu/~mein/blender/avi/examp.avi has 25 frames, 4,7 and 9 are "dropped frames" blender use to crash on these now it displays the frame before it assuming there is one. Kent